Major professional sports teams of the United States and Canada

This article is a list of teams that play in the major professional leagues in the United States and Canada: Major League Baseball (MLB), the National Football League (NFL), the National Basketball Association (NBA), the National Hockey League (NHL), Major League Soccer (MLS), and the Canadian Football League (CFL),

Est. represents the first year the team played in its current media market. For brevity, only the most recent names for teams that have had multiple nicknames in their current media market are listed. Future expansion teams whose inaugural seasons are confirmed are also included in this list.