- Mar 1 Adam LaVorgna, American actor
- Mar 1 Ana Hickmann, Brazilian supermodel
- Mar 1 Will Power, Australian auto racer (Indianapolis 500 2018), born in Toowoomba, Queensland
- Mar 2 Bryce Dallas Howard, American actress (Lady In The Water; The Help; Jurassic World), and director, born in Los Angeles, California
- Mar 3 Dusty Dvoracek, American football player
- Mar 3 Emmanuel Pappoe, Ghanaian footballer
- Mar 3 Eugene [Kim Yoo-Jin], South Korean K-pop singer (S.E.S.) and actress (A Hundred Year Legacy), born in Seoul, South Korea
- Mar 3 Sung Yu Ri, South Korean K-pop singer (Fin.K.L.) and actress (Hong Gil-dong), born in Tübingen, West Germany
- Mar 3 Tobias Forge, Swedish heavy metal singer (Ghost), born in Linköping, Sweden
- Mar 4 Carol Banawa, Filipino singer and celebrity
- Mar 4 Donny Tourette [Patrick Brannan], British punk rock singer (Towers of London), born in Liverpool, England
- Mar 5 Andreas Wiig, Norwegian snowboarder
- Mar 5 Paul Martin, American ice hockey player
- Mar 5 Shugo Oshinari, Japanese actor
- Mar 5 Zach Williams, American Christian rock musician (There was Jesus), born in Pensacola, Florida
- Mar 6 Ellen Muth, American actress
- Mar 8 Michael Beauchamp, Australian footballer
- Mar 9 Anders Nøhr, Danish footballer, born in Ikast, Denmark
- Mar 9 Antonio Bryant, American football player, born in Miami, Florida
- Mar 9 Clay Rapada, American baseball player, born in Chesapeake, Virginia
- Mar 10 Efthimios Kouloucheris, Greek footballer
- Mar 10 Samuel Eto'o, Cameroonian footballer
- Mar 10 Steven Reid, English-born footballer
- Mar 11 David Anders, American actor
- Mar 11 Lee Evans, American football player
- Mar 11 LeToya Luckett, American R&B and pop singer (Destiny's Child, 1997-2000 - Bills, Bills, Bills), and actress, born in Houston, Texas
- Mar 11 Paul Wall, American rapper
- Mar 11 Russell Lissack, English musician (Bloc Party)
- Mar 13 Stephen Maguire, Scottish snooker player, born in Glasgow, Scotland
- Mar 14 Bobby Jenks, American baseball player
- Mar 14 Mei-Ting Sun, Chinese concert pianist, born in Shanghai, China
- Mar 15 Mikael Forssell, Finnish footballer
- Mar 15 Young Buck [David Brown] American rapper, born in Nashville, Tennessee
- Mar 16 Andrew Bree, Irish swimmer
- Mar 16 Curtis Granderson, American baseball player
- Mar 16 Danny Brown [Sewell], American rapper, born in Detroit, Michigan
- Mar 16 Yoav Ziv, Israeli footballer
- Mar 17 Kyle Korver, American Basketball Player
- Mar 17 Nicky Jam [Nick Caminero], American rapper, singer and actor (Travesuras), born in Lawrence, Massachusetts
- Mar 17 Servet Çetin, Turkish Football Player
- Mar 18 Fabian Cancellara, Swiss cyclist (Olympic Gold 2008, 2016), born in Wohlen bei Bern, Switzerland
- Mar 18 Jang Nara, Korean singer and actress
- Mar 18 Kasib Powell, American basketball player
- Mar 18 Tora Berger, Norwegian biathlete
- Mar 19 Kim Rae Won, South Korean actor and model
- Mar 19 Kolo Touré, Ivorian footballer
- Mar 20 BeBe Zahara Benet [Nea Marshall Kudi Ngwa], Cameroonian male model and drag queen (S1 winner: America's Next Drag Superstar), born in Cameroon
- Mar 22 (Shawn) Mims, American rapper (This Is Why I'm Hot), born in Manhattan, New York
- Mar 23 Erin Crocker, American NASCAR driver
- Mar 23 Luciana Carro, Canadian actress
- Mar 23 Tony Peña, Jr., Dominican baseball player
- Mar 24 Ron Hainsey, American ice hockey player
Casey Neistat (42 years old)
Mar 25 American filmmaker and YouTube star, born in Gales Ferry, Connecticut
- Mar 26 Anaïs Mitchell, American singer-songwriter and playwright (Hadestown - 2019 Tony for Best Musical), born in Vermont
- Mar 26 Baruch Dego, Israeli football player, born in Addis Ababa., Ethiopia
- Mar 26 Jay Sean [Kamaljit Singh Jhooti], British pop, Bhaṅgṛā, and R&B singer, born in London, England
- Mar 26 Josh Wilson, American baseball player, born in Pittsburgh, Pennsylvania
- Mar 27 Carey Davis, American National Football League fullback, born in St. Louis, Missouri
- Mar 27 JJ Lin, Chinese singer (Music Voyager), born in Singapore
- Mar 27 Terry McFlynn, Northern Irish footballer, born in Magherafelt, Northern Ireland
- Mar 28 Edwar Ramirez, American baseball player
- Mar 28 Gareth David-Lloyd, Welsh actor (Torchwood), born in Bettws, Newport, Wales
Julia Stiles (42 years old)
Mar 28 American actress (Bourne series; Save the Last Dance; The Prince And Me), born in New York City
- Mar 28 Lindsay Frimodt, American model
- Mar 29 Edewede Oriwoh, Nigerian classical and liturgical composer, mostly for chorus (Baba, Ese; Play), born in Edo, Nigeria
- Mar 29 Megan Hilty, American actress and singer (Wicked), born in Bellevue, Washington
- Mar 29 P.J. Morton, American singer-songwriter and musician (Maroon 5; Gospel According to PJ), born in New Orleans, Louisiana
- Mar 31 Maarten van der Weijden, Dutch distance swimmer (Olympic gold 10k open water 2008), born in Alkmaar, Netherlands
- Mar 31 Ryan Bingham, American Academy Award-winning roots-rock singer-songwriter (Crazy Heart "The Weary Kind"), born in Hobbs, New Mexico
About March 1981
How Old? 42 years old
Generation: Millennial
Leap Year: No