The 1901 Chicago White Stockings season was their first season as a major league team, and their second season in Chicago. It was also the inaugural season of American League as a major league.

The 1901 Milwaukee Brewers were an American professional baseball team. This was the final season of the Milwaukee Brewers team that operated from 1894 to 1901, one of multiple teams in Milwaukee's professional baseball history to use the Brewers nickname, and the only season the team competed at the major-league level.