- Jun 2 Willem Roelofs, Dutch painter and cartoonist, dies at 66
- Jun 6 E. E. Clive, Welsh actor (Night Must Fall, Dark Hour), dies at 56
- Jun 7 James Hall, American actor (Hell's Angels, Four Sons), dies of cirrhosis at 39
- Jun 8 Frederick Converse, American composer (The Pipe of Desire), dies at 69
- Jun 16 DuBose Heyward, American novelist (Porgy, Star Spangled Virgin), dies
- Jun 16 Vitezslava Kapralova, composer, dies at 25
- Jun 17 Arthur Harden, English biochemist (Nobel Prize 1929), dies at 74
- Jun 19 Maurice Jaubert, French composer and soldier, dies a few hours after being fatally wounded in action at 40
- Jun 20 Jehan Alain, French organist/composer, dies in battle at 29
- Jun 21 Edouard Vuillard, French painter and graphic artist, dies
- Jun 21 Hendrik Marsman, Dutch poet/writer/critic, drowns at 40
- Jun 21 W Hasenclever, writer, dies at 49
- Jun 21 Smedley Butler, American Marine general, dies at 58
- Jun 22 M A Noble, cricketer (giant of NSW/Australian cricket), dies
- Jun 22 Wladimir Köppen [Vladimir Köppen], German Meteorologist and Climatologist who developed the Köppen climate classification system for the regions of the world, dies at 93
- Jun 22 Walter Hasenvlever, German writer commits suicide at 49
- Jun 28 Italo Balbo, Italian pilot and governor of Libya, dies at 44
- Jun 29 Paul Klee, Swiss/German painter/tutor (Modern Art), dies at 60