| 1917 MLB season | |
|---|---|
| League | American League (AL) National League (NL) |
| Sport | Baseball |
| Duration | Regular season:
|
| Number of games | 154 |
| Number of teams | 16 (8 per league) |
| Pennant winners | |
| AL champions | Chicago White Sox |
| AL runners-up | Boston Red Sox |
| NL champions | New York Giants |
| NL runners-up | Philadelphia Phillies |
| World Series | |
| Champions | Chicago White Sox |
| Runners-up | New York Giants |
The 1917 major league baseball season began on April 11, 1917. The regular season ended on October 4, with the New York Giants and Chicago White Sox as the regular season champions of the National League and American League, respectively. The postseason began with Game 1 of the 14th World Series on October 6 and ended with Game 6 on October 15. The White Sox defeated the Giants, four games to two.