January
February
March
April
May
June
July
August
September
October
November
December
Famous 31 year olds
Colin Kaepernick (31)
American football player
Rihanna (31)
Barbadian-American singer-songwriter and actress
Sasha Grey (31)
American pornographic actress
Frank Ocean (31)
American singer and songwriter
Skrillex (31)
American musician
Adele (31)
British singer-songwriter
Ryan Lewis (31)
American musician
Wiz Khalifa (31)
American rapper
Blake Lively (31)
American actress
Zac Efron (31)
American actor and singer
Anushka Sharma (31)
Indian actress and model
Hilary Duff (31)
American actress and singer
Trinidad James (31)
American rapper
Skylar Astin (31)
American actor and singer
Jessie J (31)
British singer
Amanda Knox (31)
American writer wrongfully imprisoned in Italy for 4 years
Snooki (31)
Chilean-American TV personality
Brenda Song (31)
American actress
Ileana D'Cruz (31)
Indian actress
Aaron Carter (31)
American singer, dancer, and actor
Big Sean (31)
American rapper
Brooke Hogan (31)
American singer, model, and actress
Michael Cera (31)
Canadian actor
Evan Rachel Wood (31)
American actress
Genelia D'Souza (31)
Indian actress
Tim Tebow (31)
American football player
Amy Macdonald (31)
Scottish singer-songwriter
Sidney Crosby (31)
Canadian ice hockey player
Juan Mata (31)
Spanish footballer
Javier Hernández Balcázar (31)
Mexican footballer
Sergio Agüero (31)
Argentinian footballer
Karen Gillan (31)
Scottish actress
Josh Bowman (31)
English actor
Mara Wilson (31)
American child actress
Ace Hood (31)
American rapper and songwriter
Haley Joel Osment (31)
American actor
Ed Westwick (31)
English actor
Nikki Reed (31)
American actress
Lexi Belle (31)
American porn actress
Mae Whitman (31)
American actress
Tom Felton (31)
English actor
James Eagan Holmes (31)
Suspect in Aurora, Colorado shooting
Claire Holt (31)
Australian actress and model
Alex Gaskarth (31)
American musician
Chelsea Manning (former Bradley Manning) (31)
American soldier
Riley Steele (31)
American porn actress
Ian Hecox (31)
YouTube comedy duo, YouTube Partner
Jang Keun-suk (31)
South Korean actor and singer
BoA (31)
South Korean singer and actress
Jake Abel (31)
American actor
Karim Benzema (31)
French footballer
AnnaLynne McCord (31)
American actress