The following lists events that happened during 1990 in the Union of Soviet Socialist Republics.

Incumbents
President of the Soviet Union – Mikhail Gorbachev
General Secretary of the Communist Party of the Soviet Union – Mikhail Gorbachev
Chairman of the Supreme Soviet – Mikhail Gorbachev (until 15 March), Anatoly Lukyanov (after 15 March)
Vice President of the Soviet Union – Gennady Yanayev 
Premier of the Soviet Union – Nikolai Ryzhkov

Events

January
January 12 – Baku pogrom
January 19–20 – Black January

March
March 4 – 1990 Russian Supreme Soviet election
March 11 – Act of the Re-Establishment of the State of Lithuania

May
May 4 – Declaration "On the Restoration of Independence of the Republic of Latvia"
May 6 – Bridge of Flowers 
May 9 – 1990 Moscow Victory Day Parade
May 16 – Congress of People's Deputies of Russia is established
May 30–31 – 1990 Vrancea earthquakes

June
June 1 – 1990 Chemical Weapons Accord
June 4–6 – Osh riots
June 7–8 – 1990 Local Council of the Russian Orthodox Church
June 12 – Declaration of State Sovereignty of the Russian Soviet Federative Socialist Republic
June 19 – Communist Party of the Russian Soviet Federative Socialist Republic is established

July
Unknown date – Gazprombank was founded.
July 14 – The 28th Politburo of the Communist Party of the Soviet Union is elected
July 14 – Central Committee elected by the 28th Congress of the Communist Party of the Soviet Union
July 16 – Declaration of State Sovereignty of Ukraine
July 27 – Declaration of State Sovereignty of the Belarusian Soviet Socialist Republic

August
August 10 – Tbilisi–Agdam bus bombing
August 30 – The 500 Days program is established

October
October 11 – Declaration of State Sovereignty of Bashkortostan
October 17 – VTB Bank was founded.
October 24 – Soviet nuclear tests
October 27 – Askar Akayev is elected as the 1st President of Kyrgyzstan
October 27 – The first episode of Pole Chudes is presented

Births
September 19 — Evgeny Novikov, Russian rally driver

Deaths

January
2 January — Leonhard Merzin, Soviet actor
4 January — Boris Nikolsky, Soviet chemist
5 January — Genrikh Sidorenkov, Soviet ice hockey player
6 January — Pavel Cherenkov, Soviet physicist and Nobel Prize recipient (1958)
19 January
Alexander Pechersky, Soviet soldier and humanitarian
Movses Gorgisyan, Soviet Armenian independence activist and soldier
Maharram Seyidov, Soviet Azerbaijani soldier
26 January — Dodo Abashidze, Soviet actor and film director

February
2 February — Paul Ariste, Soviet linguist
16 February — Volodymyr Shcherbytsky, First Secretary of the Communist Party of Ukraine (1972-1989)
22 February — Evald Seepere, Soviet Estonian boxer
23 February — David Samoylov, Russian poet

March
4 March
Konstantin Kokkinaki, Soviet fighter and test pilot
Vasily Margelov, Soviet general
7 March — Shenork I Kaloustian of Constantinople, Soviet Armenian Patriarch of Constantinople (since 1963)
9 March — George Costakis, Soviet collector of Russian art
14 March — Yuri Sokolov, Soviet Olympic judoka (1988) and criminal
15 March — Mykola Makhynia, Soviet and Ukrainian football player and coach
20 March — Lev Yashin, Soviet footballer
30 March — Vladimir Stolnikov, Soviet boxer

April
4 April
Leonid Dushkin, Soviet rocket scientist.
Mark Fradkin, Soviet composer
5 April — Lev Skvirsky, Soviet general
6 April — Yevgeny Savitsky, Soviet fighter ace during World War II
19 April — Sergey Filippov, Soviet and Russian actor and comedian
24 April
Endel Pärn, Soviet actor and singer
Vladimir Saprykin, Soviet Red Army officer and war hero
27 April — Vladimir Kanygin, Soviet middleweight weightlifter
30 April
Vasili Yermasov, Soviet football player.
Mark Zborowski, Soviet anthropologist and spy

May
3 May — Pimen I of Moscow, Soviet patriarch of the Russian Orthodox Church (since 1970)
11 May — Venedikt Yerofeyev, Soviet writer and dissident
12 May — Andrei Kirilenko, Soviet statesman and politician
15 May
Porfiry Krylov, Soviet painter and graphic artist
Anna Schchian, Soviet botanist
24 May — Julijans Vaivods, Soviet Roman Catholic cardinal
26 May — Varlen Pen, Soviet painter
28 May — Inna Gulaya, Soviet actress

June
1 June — Natalia Tkachenko, Soviet painter
4 June — Yulian Bromley, Soviet anthropologist
5 June — Vasili Kuznetsov, Soviet politician, acting chairman (1982–1983, 1984, 1985)
6 June
Sobir Kamolov, Soviet politician
Fyodor Remezov, Soviet general
11 June — Irakly Andronikov, Soviet and Russian literature historian and media personality
14 June — Ralf Liivar, Soviet football player
17 June — Aleksandrs Leimanis, Soviet film director
19 June — Aleksandr Goncharov, Soviet field hockey player and Olympian
22 June
Marat Podoksin, Soviet painter
Ilya Frank, Soviet nuclear physicist, Nobel Prize recipient (1958)
25 June — Yevgeniya Sechenova, Soviet Olympic runner (1952)
28 June — Borys Ivchenko, Ukrainian actor and film director

July
1 July – Ivan Serov, Head of the KGB (1954–1958)
4 July — Pavel Utkin, Soviet painter 
10 July – Sergei Rudenko, Soviet general
12 July – Savkuz Dzarasov, Soviet wrestler and Olympic medalist
15 July
Oleg Kagan, Soviet violinist
Enn Roos, Soviet sculptor
16 July
Mikhail Matusovsky, Soviet poet
Valentin Pikul, Soviet novelist
17 July – Lidiya Ginzburg, Soviet literary critic
19 July
Georgi Burkov, Soviet actor
Gusman Kosanov, Soviet Olympic sprinter (1960, 1964)
20 July – Sergei Parajanov, Soviet filmmaker
22 July – Eduard Streltsov, Soviet footballer

August
2 August — Vladilen Nikiforov, Soviet painter
6 August — Baqi Urmançe, Tatar-Soviet painter, sculptor, and graphic artist
15 August - Viktor Tsoi, Soviet singer and songwriter
22 August – Boris Shcherbina, Soviet politician
24 August – Sergei Dovlatov, Soviet writer
29 August – Solomon Mikhlin, Soviet mathematician
30 August — Timofey Ksenofontov, Soviet painter
31 August – Sergey Volkov, Soviet figure skater and Olympian

September
1 September – Afanasy Beloborodov, Soviet general
3 September 
Slava Amiragov, Soviet Olympic rower (1952, 1956)
Eugene Martynov, Soviet singer
8 September – Boris Tenin, Soviet actor
9 September
Alexander Men, Soviet theologian
Anatoly Sofronov, Soviet writer
Rimantas Stankevičius, Soviet cosmonaut and pilot
14 September – Leonid Ivanov, Soviet footballer
15 September – Valentin Filatyev, Soviet cosmonaut
16 September – Semyon Kurkotkin, Soviet general
21 September – Alexander Konstantinopolsky, Soviet chess player
27 September – Matvey Blanter, Soviet composer "Katyusha"

October
4 October – Sergey Lapin, Soviet diplomat
9 October – Boris Paichadze, Soviet footballer
14 October – Irina Odoyevtseva, Soviet poet, novelist and memoirist
15 October – Boris Piotrovsky, Soviet archaeologist
18 October – Pyotr Fedoseyev, Soviet philosopher
22 October – Nikolay Rybnikov, Soviet and Russian film actor
24 October — Boris Maluev, Soviet painter and graphic artist
25 October – Zara Mints, Soviet literary scientist
28 October 
Aleksandra Chudina, Soviet athlete
Kolau Nadiradze, Soviet poet
29 October – Aleksei Alelyukhin, Soviet flying ace during World War II

November
3 November – Nikolai Rakov, Soviet violinist
5 November – Suleiman Yudakov, Soviet and Tajikistani musician
7 November — Stepan Privedentsev, Soviet painter
14 November – Leonid Trauberg, Soviet and Ukrainian film director and screenwriter
16 November – Dmitri Skobeltsyn,  Soviet physicist
19 November – Georgy Flyorov, Soviet nuclear physicist, namesake of flerovium
25 November – Merab Mamardashvili, Soviet philosopher

December
1 December – Anton Kochinyan, First Secretary of the Communist Party of Armenia (1966-1974)
3 December – Heino Mandri, Estonian film and stage actor
8 December – Boris Kochno, Russian dancer, librettist and poet
15 December – Mikayil Jabrayilov, Soviet Azerbaijani soldier
21 December – Ivan Knunyants, Soviet chemist
25 December 
Vladimir Belousov, Soviet geologist
Aleksandr Luchinskiy, Soviet general
27 December – Abulfat Aliyev, Soviet and Azerbaijani opera singer
31 December – Vasily Lazarev, Soviet cosmonaut

See also
1990 in fine arts of the Soviet Union
List of Soviet films of 1980-91

References

 
1990s in the Soviet Union
Years in the Soviet Union
Soviet Union
Soviet Union
Soviet Union