The 1926 major league baseball season began on April 13, 1926. The regular season ended on September 29, with the St. Louis Cardinals and New York Yankees as the regular season champions of the National League and American League, respectively. The postseason began with Game 1 of the 23rd World Series on October 2 and ended with Game 7 on October 10. The Cardinals defeated the Yankees, four games to three, capturing their first championship in franchise history. Going into the season, the defending World Series champions were the Pittsburgh Pirates from the season.
This was the fifth of eight seasons that "League Awards", a precursor to the Major League Baseball Most Valuable Player Award (introduced in 1931), were issued.
The 1926 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 season (except for ) and would be used until in the American League and in the National League.
Opening Day, April 13, featured all sixteen teams, continuing the trend which started with the season. The American League would see its final day of the regular season was on September 27, while the National League would see its final day of the regular season on September 29 with a doubleheader between the Philadelphia Phillies and Boston Braves. The World Series took place between October 2 and October 10.
The 1926 season saw the following rule changes:
12 tie games (5 in AL, 7 in NL), which are not factored into winning percentage or games behind (and were often replayed again) occurred throughout the season.
The postseason began on October 2 and ended on October 10 with the St. Louis Cardinals defeating the New York Yankees in the 1926 World Series in seven games.
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Any team shown in indicates a previous team a player was on during the season.