- Mar 1 Sonya Kitchell, American singer
- Mar 1 Carlos Vela, Mexican soccer winger (72 caps; Real Sociedad, Los Angeles FC), born in Cancún, Quintana Roo, Mexico
- Mar 3 Erica Morningstar, Canadian Swimmer, and record holder.
- Mar 5 Jake Lloyd, American actor
- Mar 6 Agnieszka Radwańska, Polish tennis player (WTA Finals champion 2015), born in Kraków, Poland
- Mar 7 Gerald Anderson, Filipino actor and model
- Mar 8 Ming Xi, Chinese model, born in Shanghai, China
- Mar 11 Anton Yelchin, Russian-born American actor (Star Trek), born in Leningrad, Soviet Union (d. 2016)
- Mar 13 Peaches Geldof, English columnist and daughter of Bob Geldof and Paula Yates, born in London (d. 2014)
- Mar 14 Oliver Bernsen, son of Corbin Bernsen & Amanda Pays
- Mar 15 Caitlin Wachs, actress (Chloe Waters-Profiler)
- Mar 16 Theo Walcott, English football player (Arsenal, English national team), born in Stanmore, England
- Mar 16 Blake Griffin, American NBA forward (LA Clippers, Detroit Pistons), born in Oklahoma City, Oklahoma
- Mar 18 Lily Collins, British American actress (Mirror, Mirror), born in Guildford, England
- Mar 20 Tamim Iqbal, Bangladeshi cricketer
J. J. Watt
Mar 22 J. J. Watt [Justin James], American NFL player (Houston Texans), born in Waukesha, Wisconsin
J. J. Watt
- Mar 25 Chicken Kentucky, 1st partial birth in space (chicken)
- Mar 25 Alyson Michalka, American actress/singer
- Mar 25 Scott Sinclair, English footballer
- Mar 26 Von Miller, NFL outside linebacker (Denver Broncos), born in Dallas, Texas
- Mar 28 Marek Suchý, Czech footballer
- Mar 28 Mira Leung, Canadian figure skater
- Mar 28 Afrikan Boy [Olushola Ajose], British rapper (Wot It Do?), born in Nigeria
- Mar 28 Lukas Jutkiewicz, English footballer
About March 1989
How Old? 31 or 32 years old
Generation: Millennial
Leap Year: No