- Mar 1 Daniel Carvalho, Brazilian soccer winger (3 caps; Internacional, CSKA Moscow), born in Pelotas, Brazil
- Mar 1 Elan Sara DeFan, Mexican singer-songwriter
- Mar 1 Lupita Nyong’o, Mexican-Kenyan actress (12 Years a Slave), born in Mexico City
- Mar 1 Melaine Walker O.D, Jamaican athlete (Olympic gold 400m hurdles 2008; World C'ship gold 2009), born in Kingston, Jamaica
- Mar 2 Glen Perkins, American baseball pitcher (MLB All Star 2013-15; Minnesota Twins), born in St. Paul, Minnesota
- Mar 4 Max Vergara Poeti, Colombian-Italian writer, born in Bogotá, Colombia
- Mar 4 Ryan Lonie, Australian football player
- Mar 6 Andranik Teymourian, Iranian soccer player
- Mar 7 Manucho, Angolan footballer, born in Luanda, Angola
- Mar 7 Taylor Tankersley, American baseball player, born in Missoula, Montana
- Mar 8 Mark Worrell, American baseball player.
- Mar 9 Clint Dempsey, American footballer, born in Nacogdoches, Texas
- Mar 9 Maite Perroni [Beorlegui], Mexican actress and singer in the Latin pop group RBD, born in Mexico City
- Mar 9 Wayne Simien, American basketball player (Miami Heat), born in Leavenworth, Kansas
Carrie Underwood (40 years old)
Mar 10 American Grammy Award-winning country singer-songwriter (Cowboy Casanova), born in Muskogee, Oklahoma
- Mar 10 Che'Nelle [[Cheryline Lim] Malaysian-Australian pop and hip-hop singer-songwriter, born in Kota Kinabalu, Sabah, Malaysia
- Mar 10 Janet Mock, American writer, TV host and transgender rights activist (Redefining Realness), born in Honolulu, Hawaii
- Mar 10 Rafe Spall, English Actor (The Big Short), born in London, England
- Mar 10 Reena Virk, Canadian murder victim (d. 1997)
- Mar 13 Kaitlin Sandeno, American swimmer (Olympic 2004 Gold), born in Mission Viejo, California
- Mar 14 (Jordan) Taylor Hanson, American pop singer and keyboard player (Hanson - "MMMMbop"), born in Tulsa, Oklahoma
- Mar 14 Bakhtiyar Artayev, Kazakh boxer (2004 Olympic gold medal), born in Taraz, Kazakh SSR, Soviet Union
- Mar 14 Johnny Flynn, English actor (Emma) and singer-songwriter, born in Johannesburg, South Africa
- Mar 15 Daryl Murphy, Irish footballer
- Mar 15 Sean Biggerstaff, Scottish actor
- Mar 16 Brandon League, American baseball player
- Mar 17 Martin Shkreli, American businessman (Pharma), former hedge fund manager and convicted felon, born in Brooklyn, New York
- Mar 18 Andy Sonnanstine, American baseball player
- Mar 18 Tomasz Stolpa, Polish footballer
- Mar 19 Ana Rezende, Brazilian film director and musician (CSS)
- Mar 19 Matt Sydal, American professional wrestler
- Mar 23 François Gabart, French sailor (record round-the-world trip), born in Saint-Michel-d'Entraygues, France
Mo Farah (40 years old)
Mar 23 Somalian-born British distance runner (4 Olympic Golds), born in Somalia
- Mar 24 T. J. Ford, American basketball player
- Mar 26 Michael Mondo [Mike Brendli], American professional wrestler (WWE), born in Gordon Heights, New York
- Mar 28 Ryan Ashington, English footballer
- Mar 29 Ed Skrein, English actor (Deadpool) and director, born in London, England
- Mar 29 Luiza Sá, Brazilian rock guitarist and keyboard player (CCS - Cansei de Ser Sexy), born in São Paulo, Brazil
- Mar 30 Davis Romero, Panamanian baseball player
- Mar 30 Hebe Tian, Taiwanese singer (S.H.E)
- Mar 30 Jérémie Aliadière, French footballer (Arsenal), born in Rambouillet, France
- Mar 30 Scott Moffatt, Canadian guitarist and singer-songwriter (The Moffatts), born in Whitehorse, Yukon
- Mar 30 Zach Gowen, American professional wrestler
- Mar 31 Hashim Amla, South African cricket batsman (first RSA Test triple century, 311), born in Durban, Natal
- Mar 31 Vlasios Maras, Greek gymnast (World C'ships gold, horizontal bar 2001-02), born in Athens, Greece
About March 1983
How Old? 39 or 40 years old
Generation: Millennial
Leap Year: No