- Mar 1 Uładzimir Žyłka, Belarusian poet, dies at 32
Thomas J. Walsh (1859-1933)
Mar 2 United States Senator (Montana), dies of a heart attack at 73
- Mar 4 Willie Walker, American jazz singer and guitarist (Dupree Blues), dies at 36
- Mar 6 Anton Cermak, American politician (44th Mayor of Chicago, 1931-33), dies 23 days after being shot in by an assassin targeting Franklin D. Roosevelt in Miami, Florida at 59
- Mar 14 Balto, Siberian husky dog who led the sled team delivering diphtheria antitoxin from to Nenana, Alaska to Nome, Alaska in 1925, dies at 14
- Mar 16 Alfred Haar, Hungarian mathematician, dies at 47
- Mar 17 Ferdinand Von Alten, German-Russian actor (Champagne), dies at 48
- Mar 18 Prince Luigi Amedeo, Duke of the Abruzzi, Italian navy officer, explorer and mountaineer (Ruwenzori Range, Uganda; Mount Saint Alias, Yukon), dies at 60
- Mar 20 Giuseppe [Joe] Zangara, electrocuted for assassination attempt on FDR
- Mar 25 Eric Jan Hanussen [Hermann Steinschneider], Austrian astrologist, clairvoyant, illusionist, and speaking tutor to Hitler, murdered at 43
- Mar 26 Eddie Lang [Salvatore Massaro], American jazz guitarist known as the "father of jazz guitar", dies of tonsil surgery complications at 30
- Mar 27 Lionel Palairet, British cricket batsman (2 Tests; Somerset CCC, Oxford Uni CC), dies at 62
- Mar 29 Alexander Schmuller, Russian-Dutch violinist and conductor, dies at 52
Assassination
Car Crash
Hanging
Killed in Action
Plane Crash
Poisoning