- Apr 6 Greek shipping tycoon Aristotle Onassis buys the Hellenic National Airlines (TAE) and founds Olympic Airlines.
US Masters Golf
Apr 7 21st US Masters Tournament, Augusta National GC: Doug Ford wins his only Masters, 3 strokes ahead of 3-time champion Sam Snead
- Apr 13 11th NBA Championship: Bost Celtics beat St Louis Hawks, 4 games to 3
- Apr 15 61st Boston Marathon won by John J Kelley in 2:20:05; course length changed
- Apr 16 Stanley Cup Final, Montreal Forum, Montreal, Quebec: Dickie Moore has a goal and 2 assists as Montreal Canadiens beat Boston Bruins, 5-1 for a 4-1 series victory
- Apr 22 All NL baseball teams integrate, John Irwin Kennedy becomes the 1st Black player for the Philadelphia Phillies
- Apr 24 Chicago Cub pitchers walk NL record 9 Reds in 5th inning
Sports History
Apr 28 LPGA Western Open Women's Golf, Montgomery CC: Patty Berg wins her 6th WO by 1 stroke from Wiffi Smith
Baseball Players
Basketball Stars
Boxers
Footballers
NFL Stars
Tennis Champions