- Jun 3 Forbes Carlile, Australian athlete and influential swimming coach, born in Melbourne (d. 2016)
- Jun 4 Bobby Wanzer, American basketball guard (NBA All-Star 1952–56; Rochester Royals) and coach (NBA All-Star Game 1957), born in Brooklyn, New York (d. 2016)
- Jun 5 Lancelot Pierre, West Indian cricketer (1 Test WI v England 1948, 0-28), born in Port of Spain, Trinidad (d. 1989)
- Jun 9 Ágnes Keleti, Hungarian-Israeli gymnast (Olympic gold floor 1952; uneven bars, balance beam, floor, team 1956), born in Budapest, Hungary
- Jun 10 Jean Robic, French road cyclist (Tour de France 1947; World C'ship gold cyclo-cross 1950), born in Vouziers, France (d. 1980)
- Jun 18 Angelo Bertelli, American College Football Hall of Fame quarterback (Heisman Trophy 1943, National C'ship 1943, Notre Dame), born in West Springfield, Massachusetts (d. 1999)
About June 1921
How Old? 102 years old
Generation: Greatest Generation
Leap Year: No
Baseball Players
Basketball Stars
Boxers
Footballers
NFL Stars
Tennis Champions