- Apr 10 Stanley Cup Final, Chicago Stadium, Chicago, IL: Chicago Blackhawks beat Detroit Red Wings, 1-0 in double OT for a 3-1 series win; Black Hawks' first Stanley Cup
- Apr 16 38th Boston Marathon won by Dave Komonen of Canada in 2:32:53.8
- Apr 17 Fenway Park in Boston re-opens after a major renovation including a hand-operated electronic scoreboard, though it didn't help the Red Sox who lost to the Washington Senators 6-5
- Apr 21 Moe Berg, Senators catcher, plays AL record 117th cons errorless game
- Apr 28 Soccer team Blue White '34 forms
- Apr 29 Pittsburgh is last major league baseball city to play a home game on a Sunday, as the Pirates host the Cincinnati Reds