- Dec 1 Brad Delson, American rock guitarist (Linkin Park), born in Agoura, California
- Dec 2 Siyabonga Nomvethe, South African soccer forward (81 caps; Moroka Swallows, AmaZulu), born in Durban, South Africa
- Dec 3 Adam Małysz, Polish ski jumper (record 4 individual World C'ship gold medals), Wisła, Poland
- Dec 4 Ajit Agarkar, Indian cricket all-rounder (26 Tests, 58 wickets, top score 109; 191 ODIs; Mumbai), born in Mumbai, Maharashtra, India
- Dec 4 Big Pokey [Milton Powell], American rapper (Screwed Up Click), born in Houston, Texas
- Dec 4 Shahid Nazir, Pakistani cricket fast bowler (15 Tests, 36 wickets; 17 ODIs; Faisalabad, Lahore Badshahs), born in Faisalabad, Punjab
- Dec 4 Zeynep Gedizlioğlu, Turkish contemporary classical composer, born in İzmir, Turkey
- Dec 6 Andrew Flintoff, English cricketer, born in Preston, Lancashire, England
- Dec 6 Kevin Cash, American baseball catcher (World Series 2007, 09; Boston Red Sox; New York Yankees) and manager (AL Manager of the Year 2020; TB Rays), born in Tampa, Florida
- Dec 6 Paul McVeigh, Irish footballer (Norwich City), born in Belfast, Northern Ireland
- Dec 7 Dominic Howard, English drummer (Muse), born in Stockport, England
- Dec 7 Fernando Vargas, American boxer (IBF light middleweight title 1998-2000, WBA title 2001-02), born in Oxnard, California
- Dec 7 Luke Donald, English golfer (US Masters 2005, PGA C'ship 2006 3rd), born in Hemel Hempstead, Hertfordshire
- Dec 8 Elsa Benítez, Mexican supermodel, born in Hermosillo, Mexico
- Dec 8 Ryan Newman, American NASCAR driver, born in South Bend, Indiana
- Dec 8 Sébastien Chabal, French rugby union footballer, born in Valence, France
- Dec 9 Imogen Heap, British dance-pop singer-songwriter, born in London Borough of Havering, United Kingdom
- Dec 9 Saskia Garel, Canadian actress, born in Kingston, Jamaica
- Dec 9 Shayne Graham, American football player, born in Radford, Virginia
- Dec 10 Emmanuelle Chriqui, Canadian actress
- Dec 11 Mark Streit, Swiss ice hockey player, born in Englisberg, Switzerland
- Dec 12 Bridget Hall, American model (Ford), born in Dallas, Texas
- Dec 12 Nicole, Erica and Jaclyn Dahm, American triplet Playboy models, born in Minneapolis, Minnesota
- Dec 12 Orlando Hudson, American baseball player, born in Darlington, South Carolina
- Dec 13 Peter Stringer, Irish rugby union footballer, born in Cork, Ireland
- Dec 13 Sascha Kindred, British Paralympic swimmer, born in Münster, Germany
- Dec 14 Andrés Orozco-Estrada, Colombian-Austrian conductor (Houston Symphony, 2014-22; Frankfurt Radio Symphony, 2005-2021), born in Medellín, Colombia
- Dec 15 Catherine Fox, American swimmer (Olympic gold 4×100m freestyle, 4×100m medley 1996; World C'ships gold 4×100m freestyle 1998), born in Roeland Park, Kansas
- Dec 16 Sylvain Distin, French footballer
- Dec 17 Arnaud Clement, French tennis player
- Dec 17 Katheryn Winnick, Canadian actress (Vikings; Big Sky), born in Etobicoke, Ontario
- Dec 18 José Acevedo, Dominican MLB baseball pitcher (Cincinnati Reds, 2001-04; Colorado Rockies, 2005), born in Santo Domingo, Dominican Republic
- Dec 18 Maria Brink, American heavy metal singer and songwriter (In This Moment), born in Schenectady, New York
- Dec 19 Jorge Garbajosa, Spanish basketball forward (FIBA World C'ship gold 2006; Mr. Europa 2006 Unicaja; Toronto Raptors) and executive (president Spanish Basketball Federation 2016-23), born in Madrid, Spain
- Dec 20 David Feldman, Brazilian-Israeli jazz and bossa nova pianist, arranger, and composer, born in Rio de Janeiro, Brazil
Emmanuel Macron (46 years old)
Dec 21 French politician, President of France (2017-), born in Amiens, France
- Dec 23 Alge Crumpler, American football player, born in Greenville, North Carolina
- Dec 23 Becky Ruehl, American diver (Olympic 4th 1996), born in Lakeside Park, Kentucky
- Dec 23 Jari Mäenpää, Finnish heavy metal guitarist and singer (Wintersun), born in Finland
- Dec 23 Paul Shirley, American basketball player, born in Redwood City, California
- Dec 25 Israel Vázquez, Mexican boxer (WBC, IBF, Lineal Super bantamweight champion), born in Mexico City
- Dec 25 Jim Greco, American skateboarder (Bakerboys Distribution, Deathwish Skateboards, Hammers), born in New Haven, Connecticut
- Dec 25 Uhm Ji-won, South Korean actress, born in Daegu, South Korea
- Dec 27 Jacqueline Pillon, Canadian actress
- Dec 28 Shane Elford, Australian rugby league player, born in Penrith, Australia
- Dec 29 Jimmy Journell, American baseball player, born in Springfield, Ohio
- Dec 29 Katherine Moennig, American actress, born in Philadelphia, Pennsylvania
- Dec 30 Grant Balfour, Australian baseball player
- Dec 30 Kenyon Martin, American basketball player
- Dec 30 Laila Ali, American boxer
- Dec 30 Scott Lucas, Australian rules footballer
- Dec 31 Donald Trump Jr., American businessman and son of Donald Trump and Ivana Trump, born in New York City
Psy (46 years old)
Dec 31 South Korean pop star (Gangnam Style), born in Seoul, South Korea
- Dec 31 Wardy Alfaro, Costa Rican soccer goalkeeper (5 caps; LDA Alajuelense 154 games), born in Alajuela, Costa Rica
About December 1977
How Old? 46 years old
Generation: Generation X
Leap Year: No
Chinese Zodiac: Snake
Star Signs: Sagittarius (Nov 22 - Dec 21), Capricorn (Dec 22 - Jan 19)
Greatest Generation
Silent Generation
Baby Boomer
Generation X
Millennial
Generation Z