- Dec 3 Tom Fears, American College and Pro Football Hall of Fame defensive end and coach (NFL champion 1951; First-team All-Pro, NFL receiving yards leader 1950; LA Rams), born in Guadalajara, Mexico (d. 2000)
- Dec 3 Trevor Bailey, English cricket all-rounder, writer and broadcaster (61 Tests, 1 x 100, 10 x 50, HS 134no, 132 wickets; BBC), born in Westcliff-on-Sea, Essex, England (d. 2011)
- Dec 4 Eagle Keys, American Canadian Football Hall of Fame linebacker and coach (Grey Cup champion 1949, 54-56, 66; Edmonton Eskimos, Saskatchewan R'riders), born in Tompkinsville, Kentucky (d. 2012)
- Dec 7 Alan Ford, American swimmer (world 100m freestyle record 55.4; Olympic silver 1948), born in Panama Canal Zone, Panama (d. 2008)
- Dec 8 Joe Burke, American baseball executive (president KC Royals 1981-92), born in Louisville, Kentucky (d. 1992)
- Dec 12 John Pulman, English snooker player (World Champion 1957-68; News of the World Snooker Tournament 1954, 57, 58), born in Teignmouth, England (d. 1998)
- Dec 12 Ken Kavanagh, Australian motorcycle road racer (5 x GP wins; first Australian to win a Grand Prix race), born in Melbourne, Australia (d. 2019)
- Dec 21 Wataru Misaka, American basketball point guard (first non-white player, first player of Asian descent in BAA [later known NBA]; NY Knicks), born in Ogden, Utah (d. 2019)
- Dec 23 Onofre Marimón, Argentine racing driver, born in Zárate, Argentina (d. 1954)
- Dec 24 Iron Mike DiBiase, American wrestler, born in New York City (d. 1969)
About December 1923
How Old? 100 years old
Generation: Greatest Generation
Leap Year: No
Chinese Zodiac: Pig
Star Signs: Sagittarius (Nov 22 - Dec 21), Capricorn (Dec 22 - Jan 19)
Baseball Players
Basketball Stars
Boxers
Footballers
NFL Stars
Tennis Champions