- Apr 1 Norm Van Lier, American basketball point guard (NBA All-Star 1974, 76, 77; Chicago Bulls) and broadcaster (Comcast SportsNet), born in East Liverpool, Ohio (d. 2009)
- Apr 3 Theo Pahlplatz, Dutch soccer striker, midfielder (13 caps; FC Twente 468 games), born in Oldenzaal, Netherlands (d. 2023)
- Apr 4 Ray Fosse, American MLB baseball catcher, 1967-79 (All-Star, Gold Glove Award - 1970, 1971 Cleveland Indians; World Series Oakland A's 1973, 74; and 2 other teams) and broadcaster (Oakland A's, NBC), born in Marion, Illinois (d. 2021)
- Apr 13 František Cipro, Czech soccer forward (SK Slavia Prague 232 games) and manager (SK Slavia Prague, SK Dynamo České Budějovice), born in Jihlava, Czech Republic (d. 2023)
- Apr 14 Bob Massie, Australian cricket swing bowler (6 Tests; 16 wickets on debut v England 1972), born in Perth, Australia
- Apr 16 Johnny Grier, American football official (1981-2004; first African-American referee in NFL history 1988), born in Charlotte, North Carolina (d. 2022)
Kareem Abdul-Jabbar (77 years old)
Apr 16 American Basketball Hall of Fame center (6 x NBA champion; NBA Finals MVP 1971, 85; 6 × NBA MVP; 19 × NBA All-Star), born in New York City
- Apr 17 Tsutomu Wakamatsu, Japanese baseball player, born in Rumoi, Hokkaidō, Japan
Johan Cruyff (1947-2016)
Apr 25 Dutch soccer player and coach (Ajax/Barcelona), born in Amsterdam, the Netherlands
- Apr 26 Donna De Varona, American swimmer (Olympic-2 gold-64), born in Greenwich, Connecticut
- Apr 27 Keith Magnuson, Canadian ice hockey defenseman (NHL All Star 1971, 72; Chicago Black Hawks), born in Wadena, Saskatchewan (d. 2003)
- Apr 29 Jim Ryun, American 1500m runner/broke 4 minute mile (Olympic silver 1968)
- Apr 29 Johnny Miller, American golfer (US Open 1973, British Open 1976), born in San Francisco, California
About April 1947
How Old? 76 or 77 years old
Generation: Baby Boomer
Leap Year: No
Baseball Players
Basketball Stars
Boxers
Footballers
NFL Stars
Tennis Champions