- Oct 2 Alexandru Averescu, Romanian soldier and politician (b. 1859)
- Oct 3 Viktor Kosenko, Russian-Ukrainian pianist, composer (Moldavian Poem), and educator, dies of kidney cancer at 41
- Oct 5 Saint Faustina, Polish saint (b. 1905)
- Oct 10 Lord Hawke [Martin Hawke], English cricket batsman (5 Tests; Yorkshire CCC, Cambridge Uni CC, MCC), dies at 78
- Oct 12 Hugh Massie, Australian cricket batsman and captain (9 Tests; NSW), dies at 84
- Oct 13 E. C. Segar, American cartoonist (Popeye), dies at 43
- Oct 18 Karl J Kautsky, Austrian Marxist/socialist, dies at 83
- Oct 22 May Irwin, Canadian comedienne and singer (Hot Time in the Old Town), dies at 76
- Oct 24 Ernst Barlach, German writer and artist, dies at 68
- Oct 25 Alfonsina Storni, Argentine poet (La inquietud del rosal), dies at 46
- Oct 27 Lascelles Abercrombie, English poet/critic, dies at 57