- May 1 Darius McCrary, actor (Edward Winslow-Family Matters)
- May 3 Jeff Halpern, American ice hockey player, born in Potomac, Maryland
- May 4 Ben Grieve, American baseball player, born in Arlington, Texas
- May 4 Heather Kozar, playmate (Jan, 1998), born in Akron, Ohio
- May 4 Jason Michaels, American baseball player, born in Tampa, Florida
- May 5 Anastasios Pantos, Greek footballer, born in Korydallos, Greece
- May 5 Dieter Brummer, Australian TV actor (Home and Away: Underbelly), born in Sydney, New South Wales (d. 2021)
- May 5 Juan Pablo Sorín, Argentine footballer (Argentine national team FIFA World Cups), born in Buenos Aires, Argentina
- May 5 Sage Stallone, American actor (Rocky V) and the eldest son of Sylvester Stallone, born in Los Angeles, California
- May 6 Lindsay Page, figure skater (1997 E Great Lakes Sr-3rd), born in Madison, Wisconsin
- May 7 Nicholas Butcher, field hockey midfielder/forward (Olympics 1996), born in Los Angeles, California
- May 8 Ian "H" Watkins, Welsh pop singer (Steps - "Heartbeat"; "Stomp"), actor, and television personality, born in Llwynypia, Wales
- May 8 Martha Wainwright, Canadian-American musician and songwriter, born in Montréal, Quebec
- May 8 Oleg Tverdovsky, Russian-American NHL defenseman (Winnipeg Jets), born in Donetsk, Ukrainian SSR, Soviet Union
- May 10 Rob Malda, American internet writer and editor who co-founded Slashdot, born in Holland, Michigan
- May 10 Stuart Braithwaite, Scottish guitaist and songwriter (Mogwai, born in South Lanarkshire, Scotland)
- May 10 Udo Mechels, Belgian singer (Isn't It Time), born in Brussels, Belgium**-
- May 11 Lloyd Pierce, American basketball head coach (Atlanta Hawks 2019), born in San Jose, California
- May 12 Matt Mangano, American country-rock bass player (Zac Brown Band), born in Visalia, CA
- May 13 Mark Delaney, Welsh footballer (Aston Villa), born in Haverfordwest, Wales
- May 14 Brian Lawrence, American baseball player
- May 14 Hunter Burgan, American musician (AFI)
- May 14 Martine McCutcheon, British actress
- May 14 Terrance Cauthen, lightweight boxer (Olympic bronze 1996), born in Trenton, New Jersey
- May 15 Jacek Krzynówek, Polish footballer
- May 15 Ryan Leaf, American football player
- May 17 Anna Windsor, Australian swimmer (Olympics 1996), born in Sydney, New South Wales
- May 17 Daniel Komen, Nyaru Kenya, 5k runner
- May 17 Lee-Hom Wang, American-born Taiwanese musician and composer
- May 17 Peter Devine, American fencer-foil (Olympics 1996), born in NYC, New York
- May 17 Rochelle Aytes, American actress (Mistresses), born in Harlem, New York City
- May 19 Kevin Garnett, American basketball forward (15-time NBA All Star), born in Greenville, South Carolina
- May 20 Ramón Hernández, Venezuelan baseball player
- May 20 Tomoya Satozaki, Japanese baseball player
- May 21 Deron Miller, American rock musician (CKY), born in Chester, Pennsylvania
- May 21 Kardinal Offishall [Jason Drew Harrow], Canadian rapper, born in Scarsborough, Ontario
- May 22 Christian Vande Velde, cyclist (Olympics 1996), born in Chicago, Illinois
- May 23 Kelly Marie Monaco, playmate (April, 1997), born in Philadelphia, Pennsylvania
- May 23 Ricardinho, Brazilian footballer
- May 24 Alessandro Cortini, Italian rock musician (Nine Inch Nails), born in Bologna, Italy
- May 24 Bob Maesen, Belgian flatwater canoer, born in Neerpelt, Pelt, Belgium
- May 24 Catherine Cox, Australian netballer, born in Whangarei, New Zealand
- May 25 Cillian Murphy, Irish actor (28 Days Later), born in Douglas, County Cork, Ireland
- May 25 Ethan Suplee, American actor (American History X), born in Manhattan, New York
- May 25 Sandra Nasić, German singer (Guano Apes), born in Göttingen, Germany
- May 25 Tarik Glenn, American football offensive tackle (Pro Bowl 2004-06; Super Bowl 2006; Indianapolis Colts), born in Cleveland, Ohio
- May 26 Benji Gregory, American actor (Brian Tanner-Alf), born in Encino, California
- May 26 Justin Pierre, American punk-pop singer and guitarist (Motion City Soundtrack), born in Mahtomedi, Minnesota
- May 26 Scott Humphries, Greely Colo, tennis star (1995 doubles Binghampton)
- May 27 Darrell Russell, American football defensive tackle (Pro Bowl 1998, 99; First-Team All-Pro 1998; Oakland Raiders), born in Pensacola, Florida (d. 2005)
- May 27 Richard Park, Seoul Kor, NHL center (Pitts Penguins)
- May 27 RJD2, American hip-hop producer
- May 28 Alexei Nemov, Russian gymnast
- May 28 Glenn Morrison, Rugby League Player
- May 28 Liam O'Brien, American voice actor, writer and director (Dungeons & Dragons), born in Weehawken, New Jersey
- May 28 Pamelia Stickney, American theremin player and jazz bassist, born in California
- May 29 Caçapa, Brazilian soccer defender (Brazil 3 caps, Lyon), born in Lavras, Brazil
- May 29 David Buckner, American drummer (Papa Roach, 1993-2007 - "Last Resort"), born in Vacaville, California
- May 29 Jerry Hairston Jr., American baseball infielder/outfielder, broadcaster (Baltimore Orioles), born in Des Moines, Iowa
- May 29 Yegor Titov, Russian soccer midfielder, coach (Russia 41 caps), born in Moscow, Russia
- May 29 Yūsuke Iseya, Japanese model and actor
- May 30 Magnus Norman, Swedish tennis player
- May 30 Omri Hairi Katz, actor (Marshall Teller-Eerie Indiana), born in Los Angeles, California
Colin Farrell (46 years old)
May 31 Irish actor (In Bruges, Minority Report), born in Dublin, Ireland
- May 31 Matt Harpring, American basketball player (Utah Jazz) and analyst, born in Cincinnati, Ohio
About May 1976
How Old? 46 years old
Generation: Generation X
Leap Year: Yes