- Dec 7 Fiorenzo Magni, Italian road cyclist (Giro d'Italia 1948, 51, 55; Tour of Flanders 1949, 50, 51), born in Vaiano, Italy (d. 2012)
- Dec 8 McDonald Bailey, British-Trinidadian athlete (Olympic bronze 100m 1952; 100m WR 10.2s 1951-56), born in Williamsville, Trinidad (d. 2013)
- Dec 10 Ragnhild Hveger, Danish swimmer (Olympic silver 400m freestyle 1936; 44 world records 1938-56), born in Nyborg, Denmark (d. 2011)
- Dec 15 Eddie Robinson, American baseball first baseman (MLB All Star 1949, 51–53; Washington Sens, Chicago White Sox, Philadelphia A's) and executive (GM Texas Rangers, Atlanta Braves), born in Paris, Texas (d. 2021)
- Dec 21 Kel Nagle, Australian golfer (British Open 1960), born in Sydney, Australia (d. 2015)
- Dec 27 Bruce Hobbs, American jockey (youngest to ride winner of English Grand National on Battleship 1938), born in Long Island, New York (d. 2005)
- Dec 28 Steve Van Buren, NFL halfback (Philadelphia Eagles), (d. 2012)
About December 1920
How Old? 103 years old
Generation: Greatest Generation
Leap Year: Yes
Chinese Zodiac: Monkey
Star Signs: Sagittarius (Nov 22 - Dec 21), Capricorn (Dec 22 - Jan 19)
Baseball Players
Basketball Stars
Boxers
Footballers
NFL Stars
Tennis Champions