- Dec 2 Mark Kotsay, American baseball outfielder and coach (1,914 MLB games; Florida Marlins, Oakland A's), born in Whittier, California
- Dec 4 Marci Jobson (Miller), American soccer midfielder (17 caps; Turbine Potsdam FC, Atlanta Beat) and coach (Baylor University 2008-14), born in St. Charles, Illinois
Ronnie O'Sullivan (47 years old)
Dec 5 British snooker player (7 x world champion; 7 x Masters champion; 7 x UK champion), born in Wordsley, England
- Dec 6 Natalie Titcume, Australian softball catcher (Olympic bronze 1996), born in Sydney, Australia
- Dec 7 Jamie Clapham, English footballer (Ipswich Town), born in Lincoln, England
- Dec 8 Kevin Harvick, American auto racer (NASCAR Cup Series Champion 2014), born in Bakersfield, California
- Dec 10 Josip Skoko, Australian footballer
- Dec 11 Gerben de Knegt, Dutch cyclist, born in Tilburg, Netherlands
- Dec 12 Craig Moore, Australian soccer defender and broadcaster (52 caps; Glasgow Rangers 175 games), born in Sydney, New South Wales
- Dec 13 Matt LeCroy, American baseball catcher (Olympic bronze 1996), born in Belton, South Carolina
- Dec 14 James Cotton, American NBA guard (Seattle Supersonics), born in Los Angeles, California
- Dec 14 Tamecka Dixon, American WNBA guard (LA Sparks), born in Linden, New Jersey
- Dec 16 Valentin Bădoi, Romanian footballer
- Dec 17 Nick Farrell, Canadian boxer (Olympics 1996), born in East York, Ontario
- Dec 17 Tim Clark, South African golfer (US Masters 2006 runner-up; Players C'ship 2010), born in Durban, RSA
- Dec 18 Michael Barry, cyclist (Olympics 1996), born in Toronto, Ontario
- Dec 19 Olivier Tebily, Ivorian footballer
- Dec 20 Bartosz Bosacki, Polish footballer, born in Poznań, Poland
- Dec 22 Dmitri Khokhlov, Russian footballer, born in Krasnodar, Russia
- Dec 22 Sergei Aschwanden, Swiss judoka, born in Bern, Switzerland
- Dec 22 Stanislav Neckar, NHL defenseman (Ottawa Senators, Olympic gold 1998), born in České Budějovice, Czech Republic
- Dec 23 Vadim Sharifijanov, Russian ice hockey player, born in Ufa, Russia
- Dec 24 Natalie Ward, Australian softball shortstop/2nd baseman (Olympic bronze 1996)
- Dec 25 Hideki Okajima, Japanese baseball pitcher (3 × NPB All-Star; MLB All Star 2007; first Japanese-born pitcher to play in World Series, Game 2 2007 Boston Red Sox; Yomiuri Giants), born in Kyoto Prefecture, Japan
- Dec 25 Marcus Trescothick, English cricket batsman (76 Tests, 14 x 100s, HS 219; 123 ODIs; Somerset CCC), born in Keynsham, England
- Dec 26 Marcelo Rios, Chilean tennis star (1995 Amsterdam), born in Santiago, Chile
- Dec 27 Patrick Paauwe, Dutch soccer player (PSV, Graafschap)
- Dec 29 Jaret Wright, American baseball player, born in Anaheim, California
Tiger Woods (47 years old)
Dec 30 American golfer (15 major titles; 81 PGA Tour titles; 41 European Tour titles), born in Cypress, California
- Dec 31 Toni Kuivasto, Finnish soccer defender (75 caps; Djurgårdens IF 165 games), born in Tampere, Finland
About December 1975
How Old? 47 years old
Generation: Generation X
Leap Year: No
Chinese Zodiac: Rabbit
Star Signs: Sagittarius (Nov 22 - Dec 21), Capricorn (Dec 22 - Jan 19)