Yvonne van Gennip (59 years old)
May 1 Dutch speed skater (Olympic gold 1,500m, 3,000m, 5,000m 1988), born in Haarlem, Netherlands
Ron Hextall (59 years old)
May 3 Canadian NHL goalie, 1986-99, Vezina & Conn Smyth winner, scored 2 goals (Philadelphia Flyers and 2 other teams), and executive, 1999-2023 (Philadelphia, Los Angeles Kings, Pittsburgh Penguins), born in Brandon, Manitoba
- May 4 Goran Prpić, Croatian tennis player (Hopman Cup Yugoslavia 1991 [Monica Seles], born in Zagreb, Croatia
- May 5 Heike Henkel, German world record indoor high jumper (Olympic gold 1992), born in Kiel, Schleswig-Holstein
- May 6 Kim Oden, US Olympic volleyball player (NCAA Play of Decade-80s), born in Birmingham, Alabama
- May 6 Mike McGruder, American NFL cornerback (Tampa Bay Bucs), born in Cleveland, Ohio
- May 7 Leslie O'Neal, NFL defensive end and 6x Pro-Bowl selection (San Diego Chargers, St Louis Rams), born in Little Rock, Arkansas
- May 7 Ronnie Harmon, NFL running back (San Diego Chargers, Tennessee Oilers), born in Queens, New York
Miloslav Mečíř (59 years old)
May 9 Czech tennis player (Olympic gold 1988), born in Bojnice, Czechoslovakia
- May 11 Bobby Witt, American MLB pitcher, 1986-2001 (Texas Rangers, Oakland Athletics, and 5 other teams), born in Arlington, Virginia
- May 11 Floyd Youmans, American MLB baseball pitcher, 1985-89 (Montreal Expos, Philadelphia Phillies), born in Tampa, Florida
- May 11 Jeff Sellers, American MLB baseball pitcher, 1985-88 (Boston Red Sox), born in Compton, California
- May 11 John Parrott, British snooker player, born in Liverpool, England
- May 12 José Casanova, Peruvian soccer midfielder (10 caps; Alianza Lima), born in Lima, Peru (d. 1987)
- May 12 Joy Ellen Kitzmiller, US badminton player (Olympic-92), born in Los Angeles, California
- May 13 Sara Gomer, English tennis player, born in Torquay, England
- May 14 Suzy Kolber, American sportscaster
- May 15 Pierre Trentin, French 1K time trials (Olympic gold 1968)
- May 16 John Salley, NBA star (Detroit Pistons)
- May 17 Menno Oosting, Dutch tennis player (d. 1999)
- May 18 Will Wolford, American NFL tackle (Indianapolis Colts, Pittsburgh Steelers), born in Louisville, Kentucky
- May 20 Jeff Schwarz, American baseball pitcher (California Angels, Chicago White Sox)
- May 21 Tommy Albelin, Swedish NHL defenceman (Calgary Flames), born in Stockholm, Sweden
- May 23 Kenny Gattison, NBA forward (Orlando Magic)
- May 24 Adrian Moorhouse, British 100m breaststroker (Olympic gold 1988), born in Bradford, England
- May 24 Elizabeth McColgan, British running star (world record 5 km indoor), born in Dundee, Scotland
- May 24 Pat Verbeek, Canadian NHL forward, 1982-2002 (New Jersey Devils, Hartford Whalers, and 3 other teams; Team Canada), and executive (Detroit Red Wings), born in Sarnia, Ontario
- May 25 David Shaw, Canadian NHL defenseman, 1982-98 (Quebec Nordiques, New York Rangers, and 4 other teams), born in St. Thomas, Ontario
- May 26 Kevin Kennedy, baseball manager (Texas Rangers)
- May 28 Armon Gilliam, American NBA forward, 1987-2000 (Phoenix Suns, Milwaukee Bucks, NJ Nets, and 3 other teams), and college coach, 2001-05 (Penn State), born in Bethel Park, Pennsylvania (d. 2011)
- May 28 Beth Herr, American tennis star, born in Middletown, Ohio
- May 28 Jeff Fenech, Australian boxer
- May 30 Andrea Montermini, Italian racing driver
About May 1964
How Old? 59 years old
Generation: Baby Boomer
Leap Year: Yes