- Jun 1 Ödön von Horváth, Hungarian writer (A Child of Our Time), dies at 36
- Jun 6 Rafael Guízar y Valencia, Mexican Catholic bishop (cared for the wounded, sick, and dying during the Mexican Revolution), dies at 60
- Jun 7 Norbert Fonteyne, Flemish writer (How Flemings Came Late), dies
- Jun 14 William Wallace Campbell, American astronomer and Director of Lick Observatory, dies at 76
- Jun 15 Ernst L Kirchner, German painter, dies at 58
- Jun 17 Ranji Hordern, Australian cricket spin bowler (7 Tests, 46 wickets, BB 7/90; NSW CA), dies at 55
- Jun 22 C. J. Dennis, Australian poet (The Songs of a Sentimental Bloke), dies at 61
- Jun 24 "Digger" Robertson, cricketer (Test for Australia 1885), dies
James Weldon Johnson
Jun 26 James Weldon Johnson, American Harlem Renaissance poet, lyricist ("Lift Every Voice And Sing"), civil rights activist, and leader of the NAACP, dies in a car crash at 67
- Jun 30 Milan Rakic, Serbian poet (Nove Pesme), dies at 61