The 1935 major league baseball season began on April 16, 1935. The regular season ended on September 29, with the Chicago Cubs and Detroit Tigers as the regular season champions of the National League and American League, respectively. The postseason began with Game 1 of the 32nd World Series on October 2 and ended with Game 6 on October 7. The Tigers defeated the Cubs, four games to two.
The 1935 schedule consisted of 154 games for all teams in the American League and National League, each of which had eight teams. Each team was scheduled to play 22 games against the other seven teams of their respective league. This continued the format put in place since the 1904 season (except for 1919) and would be used until 1961 in the American League and 1962 in the National League.
Opening Day took place on April 16 and saw twelve teams across both leagues play. The final day of the regular season was on September 29 and featured all sixteen teams, continuing the trend which began with the 1930 season. The World Series took place between October 2 and October 7.
May 25 – Babe Ruth of the Boston Braves goes 4-for-4 with three home runs and six runs batted in. It is the last multi-homer game of Ruth's career, with the final home run being the first ball ever hit to clear the roof at Forbes Field in Pittsburgh.
October 7 – The Detroit Tigers defeat the Chicago Cubs, 4–3, in Game 6 of the World Series to win their first World Championship, four games to two. This was Detroit's first Series victory after failing to win four previous times.
November 26 – The National League takes over the bankrupt, last-place Boston Braves franchise after several failed attempts to buy the club. The league takes over only temporarily, until matters can be straightened out.