The 1907 Chicago Cubs season was the 36th season of the Chicago Cubs franchise, the 32nd in the National League and the 15th at West Side Park. It was the first season that the Chicago Cubs became the franchise's name officially. The team finished in first place in the National League with a record of 107–45, 17 games ahead of the Pittsburgh Pirates. It was their second straight NL pennant. The Cubs faced the Detroit Tigers in the 1907 World Series, which they won four games to none (with one tie) for their first World Series victory.