Notable Associated People
- Anton Ackermann - Leader of the Political School of the Int. Brigades.
- Todor Angelov
- Shapour Bakhtiar - Last Prime Minister of Iran under the Pahlavi Dynasty
- Hans Beimler - After his death the XI International Brigade was named in his honour.
- Norman Bethune - Canadian doctor with the Mac-Paps
- Herman Bottcher - Awarded two Distinguished Service Crosses during World War II
- Willy Brandt - West German Chancellor from 1969–1974, Nobel Peace Prize 1971, 1976 until 1992 Leader of the Socialist International
- Ernst Busch - singer of broadcasted battle songs - "Voice of the XI Brigade"
- Robert Capa war photographer
- Edward A. Carter, Jr. - Earned the Medal of Honor in World War II.
- Fred Copeman
- Vladimir Ćopić - 1937 commander of the XV Int. Brigade
- John Cornford
- Georgi Damyanov - Commander of the Albacete base under the nom de guerre of Colonel Belov
- Carmelo Delgado Delgado - Puerto Rican Nationalist
- Charles Donnelly - poet
- Janos Galicz - General "Gal"
- Bill Gannon - Irish Republican and Communist
- Pierre Georges - Colonel "Fabien"
- Nordahl Grieg - Norwegian writer
- David Guest
- Paul René Gauguin (1911–1976), painter and graphic designer, grandson of Paul Gauguin
- Ernest Hemingway - author and war reporter
- Jack Jones - political commissar of the Major Attlee Company of the XV International Brigade
- James Robertson Justice - British actor
- Ali Kelmendi - Albanian Communist
- Bernard Knox - English classicist; moved to the United States and joined the Army after the Civil War
- František Kriegel - Czechoslovak politician
- Arthur H. Landis - fantasy and non-fiction author, wrote Spain! The Unfinished Revolution, Order of Friendship of Peoples recipient
- Oliver Law
- Laurie Lee
- Luigi Longo - 1936 political commissar of Garibaldi Battalion, and 1937–38 of all International Brigades
- Petro Marko - Albanian novelist (Hasta la Vista)
- André Marty - Stalinist chief commissar, nicknamed "Butcher of Albacete"
- Guido Nonveiller
- Ferenc Münnich (political commissar of Rakosi Battalion) became Chairman of the Council of Ministers of Hungary from 1958 to 1961.
- Conlon Nancarrow - American-born composer
- George Nathan
- George Orwell - British writer
- Abe Osheroff - American activist
- Randolfo Pacciardi - 1936–37 commander of the Garibaldi Battalion
- Ezekias Papaioannou - later general secretary of AKEL
- Koča Popović - Yugoslav Surrealist, Partisan Commander, General of the JNA, and Vice-President of Yugoslavia.
- László Rajk -political commissar of the Rakosi Battalion; became Hungarian foreign secretary, was accused of espionage, and shot after a show trial in Hungary in 1949.
- Heinrich Rau - 1938 commander of the XI International Brigade
- Ludwig Renn - German writer - 1936 commander of the Thälmann Battalion in the Battle of Madrid, then chief of staff XI International Brigade
- Paul Robeson - troop entertainer/fundraiser/honorary member
- Henri Rol-Tanguy - Colonel Rol
- Valter Roman
- Esmond Romilly - English upper-class communist
- Franc Rozman - Slovenian Partisan general, national hero
- Frank Ryan - Irish Republican Army man led the Connolly Column
- Mehmet Shehu - Later Albanian Communist Prime Minister
- Humphrey (Hugh) Slater
- George Sossenko
- Žikica Jovanović Španac - Serb Yugoslav activist
- Stephen Spender
- Sygmunt Stein, Yiddish-speaking journalist, former member of the Komintern and member of the Botwin battalion
- Manfred Stern - General "Kléber" - 1936 commander of the first ("XI") Int. Brigade — called "Savior of Madrid" by the international press, then quietly replaced and his name later no longer mentioned.
- Karol Świerczewski - General "Walter"
- Gerda Taro war photographer
- Asim Vokshi - Albanian commander of the Garibaldi Battalion
- Simone Weil
- Tom Wintringham
- Milton Wolff - last commander of the Abraham Lincoln Battalion
- Wilhelm Zaisser - General "Gomez" - 1936 commanding XIII International Brigade, 1937 the international forces in Spain
- David Alfaro Siqueiros - Stalinist muralist Mexican and member of the Mexican Communist Party
- Mate Zalka - General "Lukacs" - 1936 commander XII International Brigade
|