- Jun 2 French Championships Men's Tennis: Gottfried von Cramm of Germany wins 1st of 2 French titles; beats Australian Jack Crawford 6-4, 7-9, 3-6, 7-5, 6-3
- Jun 2 French Championship Women's Tennis: England's defending champion Margaret Scriven beats American Helen Jacobs 7-5, 4-6, 6-1
Knighthood
Jun 4 Dr Frederick Banting, co-discoverer of insulin, is knighted
Frederick Banting
- Jun 5 1st formal meeting of Baker Street Irregulars (NYC)
- Jun 6 Securities & Exchange Commission established
- Jun 6 Yankee Myrl Hoag hits 6 singles in one game
- Jun 9 1st appearance of Donald Duck in a cartoon, "The Wise Little Hen"
- Jun 9 US Open Men's Golf, Merion Cricket Club: Olin Dutra overcomes an 8-stroke deficit after 36 holes to win his second major title by 1 stroke from Gene Sarazen
- Jun 9 66th Belmont: Wayne D Wright aboard Peace Chance wins in 2:29.2
- Jun 10 FIFA World Cup Final, Stadio Nazionale PNF, Rome, Italy: Angelo Schiavio scores the winner in extra time as Italy beats Czechoslovakia, 2-1
- Jun 10 USSR & Romania re-establish diplomatic relations
- Jun 11 Disarmament conference in Geneva fails
Event of Interest
Jun 12 Black-McKeller Bill passes causes the break-up of William Boeing's empire into Boeing United Aircraft [Technologies] and United Airlines
William Boeing
Meeting of Interest
Jun 14 Adolf Hitler and Benito Mussolini meet in Vienna
Adolf Hitler
Boxing Title Fight
Jun 14 American boxer Max Baer KO's defending champion Primo Carnera of Italy in 11th round at Madison Square Garden for the lineal world heavyweight title
Primo Carnera
Event of Interest
Jun 22 John Dillinger is informally named America's first Public Enemy Number One
John Dillinger
Melvin Purvis
- Jun 25 Hedley Verity takes 15 wickets v Australia (7-61 & 8-43)
Event of Interest
Jun 25 NY Yankee Lou Gehrig hits for the cycle beating White Sox 11-2
Lou Gehrig
- Jun 25 Yank pitcher John Broaca ties record by striking out 5 times
Franklin D. Roosevelt
- Jun 26 Germany & Poland sign non-aggression treaty
Event of Interest
Jun 26 W.E.B. Du Bois resigns position at NAACP
W.E.B. Du Bois
- Jun 27 Federal Savings & Loan Association created
- Jun 28 Hitler flies to Essen (for Night of Long Knives)
- Jun 29 British Open Men's Golf, Royal St. George's GC: Henry Cotton of England wins wire-to-wire by 5 shots from South African Sid Brews
- Jun 30 "Night of Long Knives" - Adolf Hitler stages a bloody purge of the Nazi party
- Jun 30 French Equatorial Africa constituted a single administrative unit
- Jun 30 Detroit radio executive George Richards pays $7,952.08 to buy NFL's Portsmouth Spartans; moves team to Detroit and rebrands it to 'Lions'