- Apr 4 France beats Wales, 11-3 at Stade Colombes to win the Five Nations Rugby Championship outright for the first time
US Masters Golf
Apr 5 23rd US Masters Tournament, Augusta National GC: Art Wall Jr wins by 1 stroke from Cary Middlecoff for his only PGA Tour major victory
- Apr 9 13th NBA Championship: Boston Celtics sweep Minnesota Lakers in 4 games, first of Boston Celtics record 8 straight titles
- Apr 9 Baltimore Orioles pull their 2nd triple play (3-6-3 vs Washington Senators)
NBA Record
Apr 9 Bill Sharman hits a NBA record 56 consecutive foul shot
- Apr 10 Chicago White Sox second baseman Nellie Fox gets a MLB Opening Day record tying 5 hits in 7 at-bats in a 14-inning, 9–7 win in Detroit
Drysdale's 2nd Opening Day HR
Apr 11 Dodger pitcher Don Drysdale hits his 2nd Opening Day HR
- Apr 16 MLB Philadelphia Phillies' Dave Philley gets a major league record 9th straight pinch hit, having ended the previous season with a streak of 8
- Apr 18 Stanley Cup Final, Montreal Forum, Montreal, Quebec: Montreal Canadiens' 4th straight title; beat Toronto Maple Leafs, 5-3 for a 4-1 series win
- Apr 20 63rd Boston Marathon won by Eino Oksanen of Finland in 2:22:42
- Apr 22 Chicago White Sox beat KC Athletics 20-6, in 1 inning Sox score 11 runs on 1 hit, 10 walks, & 3 errors
Baseball Record
Apr 22 Yankee Whitey Ford strikes out 15, beating Senators, 1-0 in 14 innings