| 1/1 | 1980 Azores Islands earthquake | Portugal | | Q3306615 |
| 1/1 | January 19801980年1月 | Unknown | | Q16645037 |
| 1/1 | Deaths in January 1980訃報 1980年1月 | Unknown | | Q109356144 |
| 1/1 | 1980 World Junior Speed Skating Championship1980世界ジュニアスピードスケート選手権大会 | Netherlands | Place: Assen | Q2171155 |
| 1/1 | Vienna New Year's Concert 1980ウィーンフィル・ニューイヤーコンサート1980 | Unknown | | Q28105635 |
| 1/1 | 1979–80 Four Hills Tournament | Germany, Austria | | Q827631 |
| 1/1 | 1980 Padmore Super Crystalate International | United Kingdom | Place: West Bromwich | Q4046289 |
| 1/1 | 1980 Canadian Professional Championship | Canada | Place: Canada | Q48990291 |
| 1/3 | 1980 Indian general election1980年インド総選挙 | India | | Q3532192 |
| 1/3 | North Kamrup massacre | India | | Q56277952 |
| 1/3 | 1980 Arunachal Pradesh Legislative Assembly election | India | | Q16962137 |
| 1/4 | 1980 Mauritanian coup d'état | Mauritania | Place: Nouakchott | Q106462626 |
| 1/5 | 1980 Kerala Legislative Assembly election | India | | Q65073349 |
| 1/6 | 1980 Manipur Legislative Assembly election | India | | Q109283713 |
| 1/7 | GPS week number rolloverGPSロールオーバー | Unknown | | Q62060882 |
| 1/7 | January 1980 Mujama al-Islamiya riot | Occupied Palestinian territory | Place: Gaza Strip | Q135105532 |
| 1/13 | 1980 New Zealand Grand Prix | New Zealand | Place: Pukekohe Park | Q21595630 |
| 1/17 | Dunmurry train explosion | United Kingdom | Place: Dunmurry | Q1193034 |
| 1/18 | Tjörn Bridge | Sweden | | Q733320 |
| 1/18 | Almö Bridge collapse | Sweden | | Q65202449 |
| 1/20 | Alonsotegi bombing | Spain | Place: Alonsotegi | Q4734517 |
| 1/21 | Iran Air Flight 291イラン航空291便墜落事故 | Iran | Place: Alborz | Q2254354 |
| 1/23 | 1980 State of the Union Address | United States | | Q4579411 |
| 1/24 | 6th People's Choice Awards | United States | | Q24207166 |
| 1/25 | 1980 Iranian presidential election | Iran | | Q4121027 |
| 1/26 | 37th Golden Globe Awards第37回ゴールデングローブ賞 | United States | Place: Los Angeles | Q2539193 |
| 1/27 | 1980 Guinean legislative election | Guinea | | Q5616523 |
| 1/27 | January 27, 19801980年1月27日 | Unknown | | Q69294235 |
| 1/31 | Burning of the Spanish Embassy在グアテマラ・スペイン大使館占拠事件 | Guatemala | Place: embassy of Spain in Guatemala | Q4999926 |
| 2/1 | Norway at the 1980 Winter Olympics1980年レークプラシッドオリンピックのノルウェー選手団 | Norway | | Q263156 |
| 2/1 | February 19801980年2月 | Unknown | | Q13070119 |
| 2/1 | figure skating at the 1980 Winter Olympics – ladies | United States | Place: Lake Placid | Q4489816 |
| 2/1 | figure skating at the 1980 Winter Olympics – pairs | United States | Place: Herb Brooks Arena | Q4991326 |
| 2/1 | figure skating at the 1980 Winter Olympics – ice dance | United States | Place: Herb Brooks Arena | Q7339449 |
| 2/1 | Deaths in February 1980訃報 1980年2月 | Unknown | | Q109356146 |
| 2/1 | 1980 Rossija Tournament | Soviet Union | | Q14850732 |
| 2/1 | 1980 Ispaster attack | Spain | Place: Ispaster | Q58416 |
| 2/1 | 1980 Tolly Cobbold Classic | Unknown | Place: Ipswich | Q48814146 |
| 2/2 | 5th César Awards第5回セザール賞 | France | Place: Salle Pleyel | Q24103 |
| 2/3 | 1980 NBA All-Star Game | Canada | Place: Capital Centre | Q2330924 |
| 2/4 | 1980 Southern Rhodesian general election | Zimbabwe | | Q17096500 |
| 2/5 | 32nd National Hockey League All-Star Game | United States | Place: Detroit | Q225152 |
| 2/5 | 1980 Grand Prix Cycliste la Marseillaise | France | | Q30346685 |
| 2/6 | 1980 Gibraltar general election1980年ジブラルタル議会総選挙 | United Kingdom | | Q16153173 |
| 2/9 | Spellemannprisen 1979 | Norway | Place: Chateau Neuf | Q12002224 |
| 2/13 | Battle of Cape Boujdour | Morocco, Western Sahara | Place: Boujdour | Q56305335 |
| 2/14 | alpine skiing at the 1980 Winter Olympics – men's downhill | United States | Place: Whiteface Mountain | Q1005569 |
| 2/16 | solar eclipse of February 16, 19801980年2月16日の日食 | Unknown | | Q7556304 |
| 2/18 | 1980 eruption of Mount St. Helens1980年のセント・ヘレンズ山噴火 | United States | Place: セント・ヘレンズ山 | Q778218 |
| 2/18 | 1980 Canadian federal election1980年カナダ総選挙 | Canada | | Q952341 |
| 2/20 | National Board of Review Awards 1979第51回ナショナル・ボード・オブ・レビュー賞 | United States | | Q3873114 |
| 2/21 | Advance Airlines Flight 4210 | Australia | Place: Sydney Airport | Q7906918 |
| 2/24 | 1980 Gabonese legislative election | Gabon | | Q5515455 |
| 2/25 | 1980 Surinamese coup d'état1980年スリナムクーデター | Suriname | Place: Suriname | Q967981 |
| 2/28 | murder at Lin Yi-hsiung residence林義雄一家殺害事件 | Taiwan | Place: Taipei | Q6776877 |
| 2/28 | 1980 Andalusian autonomy initiative referendum | Spain | | Q85725012 |
| 3/1 | March 19801980年3月 | Unknown | | Q13071488 |
| 3/1 | 1980 Omloop Het Volk | Belgium | | Q54430294 |
| 3/1 | Deaths in March 1980訃報 1980年3月 | Unknown | | Q109356145 |
| 3/1 | 1980 Pondicherry Legislative Assembly election | India | | Q114120330 |
| 3/1 | March 1980 lunar eclipse1980年3月1日の月食 | Unknown | | Q6756739 |
| 3/1 | 1980 Pakistan coup attempt | Pakistan | | Q125405019 |
| 3/2 | 1980 Kuurne–Brussels–Kuurne | Belgium | | Q56322830 |
| 3/4 | Code of Conduct for Intraparty Political Life党内の政治生活に関する若干の準則 | Unknown | | Q10893857 |
| 3/7 | Tanio oil spill | France | Place: English Channel | Q2392620 |
| 3/9 | 1980 Basque regional election1980年バスク自治州議会選挙 | Spain | | Q3751745 |
| 3/9 | 1980 Romanian legislative election | Romania | | Q7362624 |
| 3/9 | Jisr ash-Shughur massacre | Syria | Place: Jisr ash-Shughur | Q6203194 |
| 3/11 | March 11, 19801980年3月11日 | Unknown | | Q69294287 |
| 3/12 | 1980 Turkish presidential election | Turkey | | Q6031327 |
| 3/13 | 1980 Iranian legislative election | Iran | | Q4411164 |
| 3/13 | 1980 Saint-Laurent-des-Eaux nuclear accident1980年サン=ローラン=デ=ゾー原子力発電所事故 | France | | Q2822738 |
| 3/13 | 1980 Southend East by-election | United Kingdom | | Q7569540 |
| 3/14 | LOT Polish Airlines Flight 007LOTポーランド航空007便墜落事故 | Polish People's Republic | Place: Warsaw | Q1573486 |
| 3/15 | 32nd Directors Guild of America Awards第32回全米監督協会賞 | United States | Place: The Beverly Hilton | Q55602761 |
| 3/16 | 1980 Baden-Württemberg state election | Germany | | Q1804044 |
| 3/18 | 1980 Plesetsk launch pad disaster | Soviet Union | Place: Plesetsk Cosmodrome Site 43 | Q16662654 |
| 3/20 | Catalan regional election, 19801980年カタルーニャ自治州議会選挙 | Spain | | Q8774386 |
| 3/20 | Germany in the Eurovision Song Contest 1980 | Germany | Place: Munich | Q5552136 |
| 3/20 | 1st Genie Awards第1回ジニー賞 | Canada | Place: Royal Alexandra Theatre | Q2813691 |
| 3/22 | Melodi Grand Prix 1980 | Norway | Place: NRK Marienlyst | Q107588871 |
| 3/23 | 1980 Polish legislative election | Poland | | Q3051890 |
| 3/23 | 1980 Swedish nuclear power referendum | Sweden | | Q6980136 |
| 3/23 | 1980 Dwars door Vlaanderen | Belgium | | Q50820503 |
| 3/26 | 15th Golden Bell Awards | Taiwan | Place: National Dr. Sun Yat-sen Memorial Hall | Q18118945 |
| 3/27 | Alexander L. Kielland accident | Unknown | Place: Alexander L. Kielland | Q3610781 |
| 3/27 | March 27, 19801980年3月27日 | Unknown | | Q61762201 |
| 3/28 | 1980 Romanian presidential election1980年ルーマニア大統領選挙 | Socialist Republic of Romania | | Q23020487 |
| 4/1 | 1980 United States Census1980年アメリカ合衆国国勢調査 | United States | Place: United States | Q2121710 |
| 4/1 | Misgav Am hostage crisis | Israel | Place: Misgav Am | Q6875424 |
| 4/1 | April 19801980年4月 | Unknown | | Q16530453 |
| 4/1 | 1980 Sweden Cup | Sweden | | Q1557636 |
| 4/1 | Deaths in April 1980訃報 1980年4月 | Unknown | | Q109356147 |
| 4/1 | 11th GMA Dove Awards | United States | Place: Nashville | Q4547856 |
| 4/4 | 1980 diplomatic protection incident at the Peruvian Embassy, Havanaマリエル難民事件 | Cuba | Place: embassy of Peru in Cuba | Q23370841 |
| 4/4 | April 4, 19801980年4月4日 | Unknown | | Q67199143 |
| 4/5 | 1980 Cameroonian presidential election | Cameroon | | Q5026487 |
| 4/8 | 1980 Grand Prix de Denain | France | | Q21008447 |
| 4/8 | 1980 Paris–Camembert | France | | Q28747457 |
| 4/10 | Lisbon Agreement, 1980リスボン協定 | United Kingdom, Spain | | Q16555664 |
| 4/11 | Arequipa UFO incident | Peru | Place: Mariano Melgar Airport | Q117416952 |
| 4/12 | Transbrasil Flight 303トランス・ブラジル航空303便墜落事故 | Brazil | | Q7833816 |
| 4/12 | 1980 Liberian coup d'état | Liberia | Place: Monrovia | Q27628137 |
| 4/14 | 52nd Academy Awards第52回アカデミー賞 | United States | Place: Dorothy Chandler Pavilion | Q543438 |
| 4/15 | April 15, 19801980年4月15日 | Unknown | | Q69294321 |
| 4/16 | April 16, 19801980年4月16日 | Unknown | | Q69294323 |
| 4/19 | Eurovision Song Contest 1980ユーロビジョン・ソング・コンテスト1980 | Netherlands | Place: World Forum Convention Center | Q213942 |
| 4/20 | Berber Springベルベルの春 | Algeria | Place: Algiers | Q1071266 |
| 4/20 | 1980 Honduran Constituent Assembly election1980年ホンジュラス制憲議会選挙 | Honduras | | Q5892927 |
| 4/21 | 1980 Boston Marathonボストン・マラソン1980 | United States | Place: Boston | Q3133566 |
| 4/24 | 1980 Antiguan general election | Antigua and Barbuda | | Q4774829 |
| 4/25 | Dan-Air Flight 1008ダン・エア1008便墜落事故 | Unknown | Place: Tenerife North Airport | Q5213023 |
| 4/26 | 1980 Amsterdam Marathon | Unknown | | Q1968855 |
| 4/27 | Thai Airways Flight 231タイ航空231便 | Thailand | | Q7709095 |
| 4/27 | 1980 Saarland state election | Germany | | Q1804034 |
| 4/27 | disappearance of Laureen Rahn | United States | Place: Manchester | Q57292337 |
| 4/30 | Amsterdam coronation riots | Netherlands | Place: Amsterdam-Centrum | Q2225408 |
| 4/30 | Inauguration of Beatrix of the Netherlands | Netherlands | Place: Nieuwe Kerk | Q18225938 |
| 4/30 | Koninginnedag 1980 | Netherlands | | Q3069474 |
| 5/1 | death and state funeral of Josip Broz Titoチトーの葬儀 | Unknown | | Q1565426 |
| 5/1 | Youth riots in Switzerland | Switzerland | | Q546042 |
| 5/1 | May 19801980年5月 | Unknown | | Q13072289 |
| 5/1 | 1980 Media consolidation言論統廃合 | South Korea | | Q10854303 |
| 5/1 | Deaths in May 1980訃報 1980年5月 | Unknown | | Q109356148 |
| 5/2 | 1980 Hebron terrorist attack | Unknown | Place: Hebron | Q30325185 |
| 5/2 | Nepalese governmental system referendum, 1980 | Nepal | | Q6994490 |
| 5/4 | 1980 Züri-Metzgete | Switzerland | | Q3854036 |
| 5/5 | 1980 Greek presidential election | Greece | | Q19604758 |
| 5/5 | May 5, 19801980年5月5日 | Unknown | | Q69294345 |
| 5/9 | Convention concerning International Carriage by Rail | Unknown | | Q331576 |
| 5/9 | 1980 Iranian legislative election | Iran | | Q4411164 |
| 5/9 | Norco shootout | United States | Place: Norco | Q1997384 |
| 5/10 | 1980 Scottish Cup Final | United Kingdom | Place: Hampden Park | Q16838052 |
| 5/11 | 1980 North Rhine-Westphalia state election | Germany | | Q1804137 |
| 5/13 | 1980 Kalamazoo tornado | United States | | Q4579282 |
| 5/14 | Sumpul River massacre | El Salvador | Place: Sumpul River | Q60741025 |
| 5/14 | 1980 São Toméan legislative election | São Tomé and Príncipe | | Q7665729 |
| 5/15 | May 15, 19801980年5月15日 | Unknown | | Q55395098 |
| 5/17 | Coup d'état of May Seventeenth5・17非常戒厳令拡大措置 | Fourth Republic of South Korea | | Q485728 |
| 5/17 | 1980 Coppa Italia Final | Italy | Place: Stadio Olimpico | Q56364060 |
| 5/17 | Chuschi ballot burning incident | Peru | Place: Chuschi | Q83973485 |
| 5/17 | Grand Prix de Wallonie 1980 | Belgium | | Q20731454 |
| 5/18 | 1980 Austrian presidential election | Austria | | Q4825527 |
| 5/18 | 1980 Peruvian general election1980年ペルー総選挙 | Peru | | Q2497946 |
| 5/20 | Quebec referendum, 19801980年ケベック独立住民投票 | Canada | Place: Quebec | Q2064289 |
| 5/20 | European Convention on Recognition and Enforcement of Decisions Concerning Custody of Children and on Restoration of Custody of Children | Unknown | | Q5412457 |
| 5/20 | Belmoral Mine disaster | Canada | Place: Val-d'Or | Q130729399 |
| 5/21 | Outline Convention on Transfrontier Co-operation | Spain | | Q2996216 |
| 5/22 | 1980 Czechoslovak presidential election | Czechoslovakia | | Q48860922 |
| 5/22 | Egyptian constitutional referendum, 1980 | Egypt | | Q5348464 |
| 5/23 | Moroccan constitutional referendum | Morocco | | Q17000181 |
| 5/28 | murder of Dorothy Jane Scott | United States | Place: UC Irvine Medical Center | Q28222683 |
| 5/28 | 1980 Tamil Nadu Legislative Assembly election | India | | Q7681374 |
| 5/28 | 1980 Anguillan general election | Anguilla | | Q20313110 |
| 5/30 | Moroccan constitutional referendum, 30 May 1980 | Morocco | | Q6913123 |
| 5/31 | 1980 Uttar Pradesh Legislative Assembly election | India | | Q97495084 |
| 5/31 | 1980 Rajasthan Legislative Assembly election | India | | Q110362950 |
| 6/1 | Venice Declaration | Unknown | | Q264027 |
| 6/1 | June 19801980年6月 | Unknown | | Q16647459 |
| 6/1 | Deaths in June 1980訃報 1980年6月 | Unknown | | Q109356149 |
| 6/1 | 1980 Svenska Cupen Final | Sweden | Place: Råsunda Stadium | Q4579422 |
| 6/1 | Barra do Garças air disasterバラ・ド・ガルサス航空惨事 | Brazil | Place: Barra do Garças | Q46999137 |
| 6/1 | June 1980 West Bank bombings | Palestine | Place: West Bank | Q130711870 |
| 6/1 | 1980 Cupa României Final | Romania | Place: Stadionul Național | Q96363678 |
| 6/3 | 1980 Gullegem Koerse | Belgium | | Q115556871 |
| 6/4 | 1980 DFB-Pokal Final | Germany | Place: Parkstadion | Q28154338 |
| 6/7 | 1980 Taça de Portugal Final | Portugal | Place: Estádio Nacional | Q16851649 |
| 6/7 | June 7, 19801980年6月7日 | Unknown | | Q21684793 |
| 6/7 | 1980 Coupe de France Final | France | Place: Parc des Princes | Q4579225 |
| 6/8 | Mandai massacre | India | Place: Mandwi | Q6747720 |
| 6/8 | 1980 Hungarian parliamentary election | Hungary | | Q3722417 |
| 6/8 | 1980 Abruzzo regional election | Italy | | Q3722728 |
| 6/8 | 1980 Italian regional elections | Italy | | Q3722730 |
| 6/8 | 1980 Basilicata regional election | Italy | | Q3722731 |
| 6/8 | 1980 Calabrian regional election | Italy | | Q3722733 |
| 6/8 | 1980 Emilia-Romagna regional election | Italy | | Q3722736 |
| 6/8 | 1980 Piedmontese regional election | Italy | | Q3722741 |
| 6/8 | 1980 Campania regional election | Italy | | Q3722732 |
| 6/8 | 1980 Lazio regional election | Italy | | Q3722734 |
| 6/8 | 1980 Ligurian regional election | Italy | | Q3722737 |
| 6/8 | 1980 Lombard regional election | Italy | | Q3722738 |
| 6/8 | 1980 Marche regional election | Italy | | Q3722740 |
| 6/8 | 1980 Molise regional election | Italy | | Q3722742 |
| 6/8 | 1980 Tuscan regional election | Italy | | Q3722743 |
| 6/8 | 1980 Apulian regional election | Italy | | Q3722744 |
| 6/8 | 1980 Umbrian regional election | Italy | | Q3722745 |
| 6/8 | 1980 Venetian regional election | Italy | | Q3722746 |
| 6/9 | 1980 Italian local elections | Italy | | Q96249231 |
| 6/10 | 1980 NBA Draft1980年のNBAドラフト | United States | | Q532094 |
| 6/12 | Air Wisconsin Flight 965エア・ウィスコンシン965便墜落事故 | United States | | Q19864044 |
| 6/17 | 17 June 1980 Bangladesh coup d'état | Bangladesh | | Q106808203 |
| 6/19 | Convention on the Law Applicable to Contractual Obligations 1980契約債務の準拠法に関する条約 | Italy | Place: Rome | Q440953 |
| 6/19 | 1980 Algerian Cup Final | Algeria | Place: Stade 5 Juillet 1962 | Q60785345 |
| 6/20 | 1980 Iraqi parliamentary election | Iraq | | Q6068161 |
| 6/22 | 1980 Japanese general electionJapan第36回衆議院議員総選挙 | Japan | | Q1049953 |
| 6/22 | 1980 Japanese House of Councillors electionJapan第12回参議院議員通常選挙 | Japan | | Q841587 |
| 6/22 | stabbing of Suzanne Bombardier | Unknown | Place: Antioch | Q45314635 |
| 6/26 | attempted assassination of Hafez al-Assad | Syrian Arab Republic | Place: Damascus | Q6312028 |
| 6/26 | 1980 Glasgow Central by-election | United Kingdom | | Q5566774 |
| 6/27 | Itavia Flight 870イタビア航空870便事件 | Italy | Place: Tyrrhenian Sea | Q784466 |
| 6/27 | Tadmor Prison massacre | Syrian Arab Republic | Place: Tadmor Prison | Q3297496 |
| 6/29 | 1980 Icelandic presidential election | Iceland | | Q3132340 |
| 6/29 | 1980 Bolivian general election1980年ボリビア総選挙 | Bolivia | | Q4939612 |
| 6/29 | 1980 Botoșani bus accident | Romania | Place: Huțani | Q12719920 |
| 7/1 | Çorum Massacre | Turkey | Place: Çorum Province | Q1142820 |
| 7/1 | July 19801980年7月 | Unknown | | Q13066039 |
| 7/1 | Deaths in July 1980訃報 1980年7月 | Unknown | | Q109356150 |
| 7/1 | 1980 Swedish Open | Sweden | Place: Båstad Tennis Stadium | Q14374068 |
| 7/1 | 1980 Women's Nordic Football Championship | Norway | | Q1998206 |
| 7/4 | 1980 Dutch Senate election1980年オランダ上院選挙 | Netherlands | | Q19838075 |
| 7/5 | 1980 Goa Legislative Assembly election | India | | Q18750246 |
| 7/6 | 1980 Belgian motorcycle Grand Prix | Belgium | | Q20888856 |
| 7/7 | Safra massacre | Lebanon | Place: Safra | Q2905082 |
| 7/8 | Miss Universe 1980ミス・ユニバース1980 | Unknown | Place: Sejong Center | Q276821 |
| 7/8 | Aeroflot Flight 4225アエロフロート航空4225便墜落事故 | Unknown | | Q2253625 |
| 7/8 | 1980 Major League Baseball All-Star Game1980年のMLBオールスターゲーム | United States | Place: Dodger Stadium | Q11185946 |
| 7/10 | Nojeh coup plot | Iran | | Q1995577 |
| 7/13 | 1980 Orio ambush | Spain | Place: Orio | Q16931480 |
| 7/14 | Palauan constitutional referendum, 1980 | Palau | | Q7126885 |
| 7/17 | 1980 Republican Party presidential primaries | United States | | Q7314682 |
| 7/17 | 1980 Bolivian coup d'état | Bolivia | | Q122394529 |
| 7/18 | Castelsilano air crash | Unknown | | Q3797643 |
| 7/19 | 1980 Summer Olympics opening ceremony1980年モスクワオリンピックの開会式 | Soviet Union | Place: Moscow | Q3010360 |
| 7/21 | 1980 Dominican general election1980年ドミニカ国総選挙 | Dominica | | Q5290871 |
| 7/24 | shooting at the 1980 Summer Olympics – mixed skeet | Unknown | Place: Dynamo Shooting Range | Q17071584 |
| 7/25 | Winsum train disaster | Netherlands | | Q1835048 |
| 7/26 | 7th Saturn Awards第7回サターン賞 | United States | Place: United States | Q2226390 |
| 7/26 | 25th David di Donatello Awards第25回ダヴィッド・ディ・ドナテッロ賞 | Italy | Place: Ancient theatre of Taormina | Q3703413 |
| 7/27 | Death and state funeral of Mohammad Reza Pahlavi | Egypt | Place: Cairo | Q139589389 |
| 7/27 | July 1980 lunar eclipse1980年7月27日の月食 | Unknown | | Q6310501 |
| 7/28 | 1980 Antwerp summer camp attack | Unknown | Place: Antwerp | Q24565869 |
| 7/29 | 1980 Scheldeprijs | Belgium | | Q55601078 |
| 7/30 | Israeli annexation of East Jerusalemエルサレムの再統一 | Unknown | Place: Jerusalem | Q28980421 |
| 8/1 | August 19801980年8月 | Unknown | | Q16528130 |
| 8/1 | Harvey's Resort Hotel bombing | United States | Place: Harveys Lake Tahoe | Q5676938 |
| 8/1 | assassination of the Marquesses of Urquijo | Spain | Place: Somosaguas | Q8351618 |
| 8/1 | Deaths in August 1980訃報 1980年8月 | Unknown | | Q109356152 |
| 8/1 | Buttevant Rail Disaster | Ireland | Place: Buttevant railway station | Q5003056 |
| 8/2 | Bologna massacreボローニャ駅爆破テロ事件 | Italy | Place: Bologna Centrale railway station | Q569287 |
| 8/3 | 1980 Summer Olympics closing ceremony1980年モスクワオリンピックの閉会式 | Unknown | Place: Luzhniki Stadium | Q4579416 |
| 8/3 | Reagan's Neshoba County Fair "states' rights" speech | United States | Place: Neshoba County Fair | Q7300728 |
| 8/5 | 1980 Turkish Consulate attack in Lyon | France | Place: Lyon | Q4579446 |
| 8/7 | 1980 Nouadhibou Tupolev Tu-154 crash | Unknown | Place: Atlantic Ocean | Q18398637 |
| 8/10 | solar eclipse of August 10, 19801980年8月10日の日食 | Unknown | | Q7556208 |
| 8/10 | 1980 British motorcycle Grand Prix | United Kingdom | | Q3774876 |
| 8/11 | 1980 Democratic Party presidential primaries | United States | | Q5255747 |
| 8/12 | Treaty of Montevideo | Uruguay | | Q745128 |
| 8/16 | Denmark Place fire | United Kingdom | Place: Denmark Place | Q20870041 |
| 8/16 | Shizuoka gas explosionJapan静岡駅前地下街爆発事故 | Japan | | Q11663608 |
| 8/17 | death of Azaria Chamberlain | Australia | Place: Uluru | Q2348740 |
| 8/19 | Saudia Flight 163サウジアラビア航空163便火災事故 | Saudi Arabia | Place: Riyadh | Q2440618 |
| 8/19 | Otłoczyn railway accident | Polish People's Republic | | Q1765888 |
| 8/19 | 1980 Shinjuku bus fireJapan新宿西口バス放火事件 | Japan | Place: bus stations around Shinjuku Station | Q11501866 |
| 8/22 | 1980 Hamburg arson attack | Germany | Place: Billbrook | Q98594996 |
| 8/23 | 1980 Angolan legislative election | Angola | | Q1262263 |
| 8/26 | August 1980 lunar eclipse1980年8月26日の月食 | Unknown | | Q4820538 |
| 8/27 | 1980 South Korean presidential election1980年大韓民国大統領選挙 | South Korea | | Q624469 |
| 8/31 | 1980 UCI Road World Championships – Men's road race | France | | Q48835186 |
| 9/1 | Category:September 1980Category:1980年9月 | Unknown | | Q13346510 |
| 9/1 | September 19801980年9月 | Unknown | | Q16676408 |
| 9/1 | Category:September 1980 by country | Unknown | | Q83543858 |
| 9/1 | Category:September 1980 in sports | Unknown | | Q30613807 |
| 9/1 | Category:September 1980 in Europe | Unknown | | Q30618227 |
| 9/1 | Category:September 1980 by continent | Unknown | | Q30618229 |
| 9/1 | Category:September 1980 in Asia | Unknown | | Q80484650 |
| 9/1 | Category:September 1980 in the United States | Unknown | | Q83543838 |
| 9/1 | Deaths in September 1980訃報 1980年9月 | Unknown | | Q109356151 |
| 9/1 | Category:September 1980 in North America | Unknown | | Q83543851 |
| 9/1 | Category:September 1980 in Canada | Unknown | | Q85633966 |
| 9/1 | Category:September 1980 in Oceania | Unknown | | Q89229342 |
| 9/1 | Category:September 1980 in the United Kingdom | Unknown | | Q105333427 |
| 9/1 | Category:September 1980 in Australia | Unknown | | Q125114112 |
| 9/1 | Category:September 1980 in Turkey | Unknown | | Q127452460 |
| 9/1 | Tropical Storm Ruth | Unknown | | Q130213824 |
| 9/1 | Category:September 1980 in the Soviet Union | Unknown | | Q131327665 |
| 9/1 | Category:September 1980 in France | Unknown | | Q135286850 |
| 9/1 | Category:September 1980 in Kuwait | Unknown | | Q135726098 |
| 9/1 | Category:September 1980 sports events in Europe | Unknown | | Q30618949 |
| 9/1 | Category:September 1980 sports events in the United States | Unknown | | Q83543828 |
| 9/1 | Category:September 1980 sports events in North America | Unknown | | Q83543844 |
| 9/1 | Category:September 1980 sports events in Asia | Unknown | | Q86129743 |
| 9/1 | Category:September 1980 sports events in Canada | Unknown | | Q86129747 |
| 9/1 | Category:September 1980 sports events in Oceania | Unknown | | Q89229334 |
| 9/7 | Liechtenstein referendum, 1980 | Liechtenstein | | Q6544012 |
| 9/8 | Insurgency in Manipur | India | Place: Manipur | Q19891941 |
| 9/8 | Gua massacre | India | | Q122941873 |
| 9/11 | Chilean constitutional referendum, 1980 | Chile | | Q5098768 |
| 9/11 | 1980 Roller Hockey Continental Cup | Unknown | | Q21210470 |
| 9/12 | 1980 Turkish coup d'état9月12日クーデター | Turkey | | Q1758028 |
| 9/12 | Maoist insurgency in Turkeyトルコでの毛沢東主義派の反乱 | Unknown | | Q17152019 |
| 9/12 | 1980 Turkish presidential election | Turkey | | Q6031327 |
| 9/12 | Florida Commuter Airlines crash | United States | | Q5461292 |
| 9/17 | Category:1980-09-17 | Unknown | | Q88714728 |
| 9/20 | 1980 Markina attack | Spain | Place: Markina-Xemein | Q4579291 |
| 9/21 | 1980 Grote Prijs Jef Scherens | Belgium | | Q18613180 |
| 9/21 | 1980 Holly Farms 400 | United States | Place: North Wilkesboro Speedway | Q4579269 |
| 9/22 | 22 September 1980 Iraqi airstrike on Iran | Unknown | | Q116233989 |
| 9/22 | 16th Guldbagge Awards | Unknown | Place: Grand Hôtel | Q17007617 |
| 9/22 | Operation Revenge | Unknown | | Q85790975 |
| 9/23 | Operation Kaman 99カマン99作戦 | Iraq | Place: Iraq | Q1149113 |
| 9/24 | 1980 Paris–Brussels | France, Belgium | | Q57778498 |
| 9/26 | Oktoberfest terror attackオクトーバーフェスト爆弾テロ事件 | West Germany | Place: Oktoberfest | Q464048 |
| 9/28 | 1980 Paris-Tours | France | | Q41755118 |
| 9/28 | 1980 Chicago Marathonシカゴ・マラソン1980 | United States | Place: Chicago | Q1995608 |
| 9/28 | 1980 Berlin Marathonベルリン・マラソン1980 | Germany | Place: Berlin | Q2256373 |
| 9/28 | 1980 French Senate election | France | | Q3587548 |
| 9/29 | Category:September 29, 1980 | Unknown | | Q88714726 |
| 9/30 | Operation Scorch Sword | Unknown | | Q371476 |
| 10/1 | October 19801980年10月 | Unknown | | Q16667779 |
| 10/1 | Deaths in October 1980訃報 1980年10月 | Unknown | | Q109356153 |
| 10/2 | Larry Holmes vs. Muhammad Ali | United States | Place: Caesars Palace | Q28221472 |
| 10/2 | October 2, 19801980年10月2日 | Unknown | | Q30059761 |
| 10/3 | 1980 Paris synagogue bombing1980年パリのシナゴーグ爆破 | France | Place: Union Libérale Israélite de France | Q2869972 |
| 10/4 | murder of Tammy Terrell | United States | Place: Henderson | Q122782597 |
| 10/4 | 1980 Baltic Station train collision | Soviet Union | Place: Tallinn Baltic Station | Q4242627 |
| 10/5 | 1980 West German federal electionドイツ連邦議会1980年選挙 | Germany | | Q704634 |
| 10/5 | 1980 Portuguese legislative election1980年ポルトガル議会選挙 | Portugal | | Q606275 |
| 10/6 | Ugandan Bush Warウガンダ・ブッシュ戦争 | Uganda | Place: Uganda | Q3119017 |
| 10/6 | Karikkanvilla murder | Unknown | | Q23020347 |
| 10/10 | Convention on Certain Conventional Weapons特定通常兵器使用禁止制限条約 | Vatican City | Place: Geneva | Q925836 |
| 10/10 | 1980 El Asnam earthquake1980年アスナム地震 | Unknown | | Q3499552 |
| 10/10 | The lady's not for turning | United Kingdom | | Q7777041 |
| 10/12 | 1980 Ivorian presidential election | Ivory Coast | | Q3586613 |
| 10/15 | Operation Dezful | Unknown | Place: Dezful | Q18068170 |
| 10/18 | 1980 Australian federal election | Australia | | Q3586901 |
| 10/22 | South Korean constitutional referendum, 19801980年大韓民国の国民投票 | South Korea | | Q334639 |
| 10/24 | 1980 Oaxaca earthquake | Mexico | | Q4579209 |
| 10/25 | Hague Convention on the Civil Aspects of International Child Abduction国際的な子の奪取の民事上の側面に関する条約 | Unknown | | Q1566367 |
| 10/25 | International child abduction国際的な子供の誘拐 | Unknown | | Q6054508 |
| 10/26 | 1980 Tanzanian general election | Tanzania | | Q7684166 |
| 10/26 | 1980 New York City Marathonアメリカ合衆国、ニューヨークで開催したマラソン大会 | United States | Place: New York City | Q1861767 |
| 10/29 | Operation Soltan 10 | Unknown | | Q1710143 |
| 10/30 | 1980 Jamaican general election | Jamaica | | Q3587183 |
| 10/31 | Giarre murder | Italy | Place: Giarre | Q3705057 |
| 10/31 | 1980 Górna Grupa psychiatric hospital fire | Polish People's Republic | Place: Górna Grupa | Q11826454 |
| 11/1 | 1980 Moradabad riots | India | | Q15729162 |
| 11/1 | November 19801980年11月 | Unknown | | Q16667216 |
| 11/1 | Deaths in November 1980訃報 1980年11月 | Unknown | | Q109356220 |
| 11/1 | murder of Sherri Ann Jarvis | United States | Place: Huntsville | Q122802353 |
| 11/1 | 1980 Blue Swords | East Germany | Place: Chemnitz | Q28407408 |
| 11/1 | 1980 Prague Skate | Czechoslovakia | Place: Prague | Q28449816 |
| 11/3 | 17th Golden Horse Film Awards第17回金馬奨 | Taiwan | Place: National Dr. Sun Yat-sen Memorial Hall | Q15899026 |
| 11/3 | Latin Carga Convair CV-880 crash | Venezuela | Place: Simón Bolívar International Airport | Q20811151 |
| 11/3 | 1980 Zarautz attack | Spain | Place: Zarautz | Q4579483 |
| 11/4 | 1980 United States presidential election1980年アメリカ合衆国大統領選挙 | United States | | Q699716 |
| 11/4 | 1980 United States Senate elections1980年アメリカ合衆国上院議員選挙 | United States | | Q4348114 |
| 11/4 | 1980 United States presidential election in the District of Columbiaコロンビア特別区の1980年アメリカ合衆国大統領選挙 | United States | | Q20708384 |
| 11/4 | 1980 Palauan general election | Palau | | Q7126893 |
| 11/4 | 1980 United States presidential election in Californiaカリフォルニア州の1980年アメリカ合衆国大統領選挙 | United States | | Q7892709 |
| 11/4 | 1980 United States presidential election in Alabamaアラバマ州の1980年アメリカ合衆国大統領選挙 | United States | | Q17100346 |
| 11/4 | 1980 United States presidential election in New Yorkニューヨーク州の1980年アメリカ合衆国大統領選挙 | United States | | Q17100887 |
| 11/4 | 1980 United States presidential election in Texasテキサス州の1980年アメリカ合衆国大統領選挙 | United States | | Q17101048 |
| 11/4 | 1980 United States presidential election in Georgiaジョージア州の1980年アメリカ合衆国大統領選挙 | United States | | Q20708368 |
| 11/4 | 1980 United States presidential election in South Carolinaサウスカロライナ州の1980年アメリカ合衆国大統領選挙 | United States | | Q20708378 |
| 11/4 | 1980 United States presidential election in Louisianaルイジアナ州の1980年アメリカ合衆国大統領選挙 | United States | | Q21188320 |
| 11/4 | 1980 United States presidential election in Oklahomaオクラホマ州の1980年アメリカ合衆国大統領選挙 | United States | | Q21188638 |
| 11/4 | 1980 United States House of Representatives elections1980年アメリカ合衆国下院議員選挙 | United States | | Q4450322 |
| 11/4 | 1980 Puerto Rican general election | United States | | Q7258635 |
| 11/4 | 1980 United States elections | United States | | Q7892446 |
| 11/4 | 1980 United States presidential election in New Hampshireニューハンプシャー州の1980年アメリカ合衆国大統領選挙 | United States | | Q16153198 |
| 11/4 | 1980 United States presidential election in Alaskaアラスカ州の1980年アメリカ合衆国大統領選挙 | United States | | Q16158980 |
| 11/4 | 1980 United States presidential election in New Jerseyニュージャージー州の1980年アメリカ合衆国大統領選挙 | United States | | Q17100713 |
| 11/4 | 1980 United States presidential election in Ohioオハイオ州の1980年アメリカ合衆国大統領選挙 | United States | | Q20658263 |
| 11/4 | 1980 United States presidential election in Mississippiミシシッピ州の1980年アメリカ合衆国大統領選挙 | United States | | Q20708373 |
| 11/4 | 1980 United States presidential election in West Virginiaウェストバージニア州の1980年アメリカ合衆国大統領選挙 | United States | | Q20708387 |
| 11/4 | 1980 United States presidential election in Iowaアイオワ州の1980年アメリカ合衆国大統領選挙 | United States | | Q20710125 |
| 11/4 | 1980 United States presidential election in Michiganミシガン州の1980年アメリカ合衆国大統領選挙 | United States | | Q20710149 |
| 11/4 | 1980 United States presidential election in South Dakotaサウスダコタ州の1980年アメリカ合衆国大統領選挙 | United States | | Q20710180 |
| 11/4 | 1980 United States presidential election in Wisconsinウィスコンシン州の1980年アメリカ合衆国大統領選挙 | United States | | Q20710189 |
| 11/4 | 1980 United States presidential election in Illinoisイリノイ州の1980年アメリカ合衆国大統領選挙 | United States | | Q20710724 |
| 11/4 | 1980 United States presidential election in Indianaインディアナ州の1980年アメリカ合衆国大統領選挙 | United States | | Q20710734 |
| 11/4 | 1980 United States presidential election in Hawaiiハワイ州の1980年アメリカ合衆国大統領選挙 | United States | | Q20717449 |
| 11/4 | 1980 United States presidential election in Kentuckyケンタッキー州の1980年アメリカ合衆国大統領選挙 | United States | | Q20717541 |
| 11/4 | 1980 Arkansas gubernatorial election1980年アーカンソー州知事選挙 | United States | | Q4791910 |
| 11/4 | 1980 United States Senate election in New Yorkニューヨーク州の1980年アメリカ合衆国上院議員選挙 | United States | | Q7891821 |
| 11/4 | 1980 United States Senate election in Oklahomaオクラホマ州の1980年アメリカ合衆国上院議員選挙 | United States | | Q7891891 |
| 11/4 | 1980 United States Senate election in Wisconsinウィスコンシン州の1980年アメリカ合衆国上院議員選挙 | United States | | Q7892111 |
| 11/4 | 1980 United States presidential election in Floridaフロリダ州の1980年アメリカ合衆国大統領選挙 | United States | | Q7892740 |
| 11/4 | 1980 United States presidential election in Pennsylvaniaペンシルベニア州の1980年アメリカ合衆国大統領選挙 | United States | | Q7893060 |
| 11/5 | 1980 Indian general election in Tamil Nadu | India | | Q6022484 |
| 11/5 | 1980 Indian general election in Andhra Pradesh | India | | Q6022292 |
| 11/8 | 1980 Faroese general election | Denmark, Faroe Islands | | Q5436107 |
| 11/9 | 1980 Ivorian parliamentary election | Ivory Coast | | Q6099600 |
| 11/14 | 1980 Guinea-Bissau coup d'état1980年ギニアビサウ政変 | Guinea-Bissau | Place: Bissau | Q60750764 |
| 11/15 | November 15, 19801980年11月15日 | Unknown | | Q43736666 |
| 11/16 | 1980 Australian Grand Prix1980年オーストラリアグランプリ | Australia | | Q4579169 |
| 11/17 | Athens Polytechnic March of 1980 | Greece | | Q12883647 |
| 11/17 | 1980 Handan murders | People's Republic of China | Place: Handan | Q16009755 |
| 11/19 | Korean Air Lines Flight 015大韓航空015便着陸失敗事故 | South Korea | Place: Gimpo International Airport | Q11233547 |
| 11/21 | Curinga train disaster | Italy | | Q5194755 |
| 11/21 | MGM Grand fireMGMグランドホテル火災 | United States | | Q4261519 |
| 11/22 | November 22, 19801980年11月22日 | Unknown | | Q28133595 |
| 11/23 | 1980 Irpinia earthquakeイルピニア地震 | Italy | | Q1348884 |
| 11/25 | 1980 Upper Volta coup d'état1980年オートボルタクーデター | Republic of Upper Volta | | Q18604615 |
| 11/25 | Roberto Durán vs. Ray Leonard IIシュガー・レイ・レナード vs. Roberto Durán II | United States | Place: Caesars Superdome | Q3877487 |
| 11/29 | Operation Morvarid | Unknown | Place: Persian Gulf | Q191577 |
| 11/29 | Okęcie Airport incident | Poland | Place: Warsaw Chopin Airport | Q7082803 |
| 11/30 | Uruguayan constitutional referendum, 1980 | Uruguay | | Q3392834 |
| 12/1 | December 19801980年12月 | Unknown | | Q16630904 |
| 12/1 | murder of Carol Cole | United States | Place: Bossier Parish | Q20647064 |
| 12/1 | Deaths in December 1980訃報 1980年12月 | Unknown | | Q109356221 |
| 12/1 | 1980 Izvestia Trophy | Soviet Union | | Q11722765 |
| 12/2 | Alaska National Interest Lands Conservation Actアラスカ国有地保護法 | Unknown | | Q2623146 |
| 12/4 | 1980 Camarate air crash | Portugal | | Q15080410 |
| 12/4 | Ciskei independence referendum, 1980 | Ciskei | | Q5122202 |
| 12/6 | 1980 Taiwanese legislative election1980年中華民国立法委員増額選挙 | Taiwan | | Q5956121 |
| 12/6 | 1980 Nauruan parliamentary election | Nauru | | Q6981369 |
| 12/6 | 1980 Scottish League Cup Final | Unknown | Place: Dens Park | Q4484659 |
| 12/7 | 1980 Portuguese presidential election1980年ポルトガル共和国大統領選挙 | Portugal | | Q3069005 |
| 12/7 | 1980 Cape Verdean parliamentary election | Cape Verde | | Q3586972 |
| 12/8 | murder of John Lennonジョン・レノンの死 | United States | Place: The Dakota | Q2341090 |
| 12/9 | Karlino oil eruption | Polish People's Republic | Place: Krzywopłoty, West Pomeranian Voivodeship | Q6372518 |
| 12/10 | 1980 Ugandan general election | Uganda | | Q7877684 |
| 12/15 | 1980 Guyanese general election | Guyana | | Q5622791 |
| 12/18 | 1980 Israeli Labor Party leadership election | Israel | | Q111181752 |
| 12/21 | Galician autonomy statute referendum, 1980 | Spain | | Q28226413 |
| 12/22 | Saudia Flight 162サウディア162便機体破損事故 | Unknown | | Q7427170 |
| 12/23 | 1980 Singaporean general election1980年シンガポール通常選挙 | Singapore | | Q7523291 |
| 12/26 | Zhdanovskaya Station murder | Soviet Union | Place: Vykhino | Q4468629 |
| 12/27 | 1980 Pilsko incident | Polish People's Republic, Czechoslovak Socialist Republic | Place: Pilsko | Q139939336 |
| 12/28 | Rendlesham Forest incidentレンデルシャムの森事件 | United Kingdom | Place: Suffolk | Q2271637 |
| 12/29 | Cash-Landrum incident | United States | | Q2377371 |
| 12/31 | 22nd Japan Record AwardsJapan第22回日本レコード大賞 | Japan | Place: Imperial Theatre | Q11600588 |
| 12/31 | 1980 Nairobi hotel bombing | Unknown | Place: Fairmont The Norfolk Hotel | Q55625400 |