The 1886 Chicago White Stockings season was the 15th season of the Chicago White Stockings franchise, the 11th in the National League and the 2nd at the first West Side Park. The White Stockings finished first in the National League with a record of 90–34, 2.5 games ahead of the second place Detroit Wolverines. The team was defeated four games to two by the St. Louis Browns in the 1886 World Series.