- May 1 András Törőcsik, Hungarian soccer forward (45 caps; Újpest Dozsa FC, Montpellier), born in Budapest, Hungary (d. 2022)
- May 1 Julien Wiener, Australian cricket batsman (6 Tests, top score 93; 7 ODIs), born in Melbourne, Australia
- May 2 Ian Callen, Australian cricketer (one Test Australia v India 1978, six wickets), born in Alexandra, Victoria, Australia
- May 3 David Hookes, Australian cricketer and coach, born in Mile End, Adelaide, Australia (d. 2004)
- May 6 Ron Fawcett, British rock climber, born in Embsay, North Riding of Yorkshire, England
- May 9 Myra Blackwelder, American golfer (LPGA Rookie of the Year 1980), born in Lexington, Kemtucky
- May 10 Chris Berman, sportscaster (ESPN)
- May 14 Jan Sørensen, Danish soccer striker (11 caps; Club Brugge, FC Twente, Feyenoord, Ajax) and manager (Portimonense, Walsall FC), born in Glostrup, Denmark (d. 2024)
- May 14 Peter Kirsten, South African cricket batsman and coach (12 Tests, top score 104; 40 ODIs), born in Pietermaritzburg, Natal, South Africa
Dennis Martínez (68 years old)
May 14 Nicaraguan baseball pitcher (Orioles, Expos, Indians), born in Granada, Nicaragua
Jack Morris (68 years old)
May 16 Baseball Hall of Fame pitcher (5 x MLB All Star; World Series 1984 Detroit Tigers, 1991 [MVP] Minnesota Twins, 1992-93 Toronto Blue Jays), born in Saint Paul, Minnesota
Olga Korbut (68 years old)
May 16 Soviet-Belarusian gymnast (4 x Olympic gold 1972, 76), born in Grodno, Belarus, Soviet Union
- May 19 Ed Whitson, pitcher (NY Yankees, San Diego Padres)
- May 21 Liaqat Ali, Pakistani cricket pace bowler (Pakistan for six Tests 1975-79), born in Karachi, Pakistan
- May 21 Paul Barber, British field hockey player
- May 24 Thad Ackel, American racehorse trainer
- May 26 Wesley Walker, American football wide receiver (Pro Bowl 1978, 82; First-team All-Pro 1978; New York Jets 1977–89), born in San Bernardino, California
- May 27 Abdelmalek Ali Messaoud, Algerian soccer defender (38 caps; USM Alger, USM Annaba), born in Annaba, Algeria (d. 2022)
- May 27 Graham "Jock" Edwards, New Zealand cricket batsman (8 Tests, 3 x 50; Central Districts), born in Nelson, New Zealand (d. 2020)
- May 28 Mark Howe, American ice hockey player
- May 29 Ken Schrader, American auto racer, promoter (Daytona 500 1988, 89, 90), born in Fenton, Missouri
- May 30 Jake "The Snake" Roberts, American pro wrestler (WWE Hall of Fame), born in Gainesville, Texas
- May 31 Laura Baugh, American golfer, writer, broadcaster (LPGA Tour Rookie of the Year 1973), born in Gainesville, Florida
About May 1955
How Old? 68 years old
Generation: Baby Boomer
Leap Year: No
Chinese Zodiac: Goat/Sheep
Star Signs: Taurus (Apr 20 - May 20), Gemini (May 21 - Jun 20)
Baseball Players
Basketball Stars
Boxers
Footballers
NFL Stars
Tennis Champions