- Oct 7 Harvey Cushing, American neurosurgeon (blood pressure studies), dies at 70
- Oct 10 Eleanor Rigby, a real person whose name may have suggested the title to The Beatles song (b. 1895)
- Oct 16 Ludolf Nielsen, Danish composer, dies at 63
- Oct 21 H G "Nummy" Deane, South African cricket batsman (17 Tests [12 as captain], 3 x 50; Natal, Transvaal), dies from a heart attack at 44
- Oct 23 Zane Grey, American western novelist (Spirit of the Border), dies at 67
- Oct 25 Cornelis JK van Aalst, president Dutch Business Society, dies at 73
- Oct 28 Alice Brady, American silent and talkie film actress (My Man Godfrey; The Gay Divorcee; Zenobia), dies of cancer at 46
- Oct 29 Dwight B. Waldo, American educator (first President of Western Michigan University), dies at 75
- Oct 31 Otto Rank [Rosenfeld], Austria psychoanalyst (Trauma of Geburt), dies
Assassination
Drug Overdose
Gunshot Wound
Murder
Plane Crash
Suicide