The American Hockey League (AHL) is a professional ice hockey league based in the United States and Canada that serves as the primary developmental league for the National Hockey League (NHL). As of the 2023–24 AHL season, 31 of the 32 AHL teams had an official affiliation with an NHL team; immediately following season's end, the Chicago Wolves and Carolina Hurricanes finalized an affiliation agreement, resulting in all AHL teams having an NHL affiliation for the upcoming 2024–25 season. Historically, when an NHL team does not have an AHL affiliate, its players are assigned to AHL teams affiliated with other NHL franchises.

In sports, a farm team, farm system, feeder team, feeder club, or nursery club is generally a team or club whose role is to provide experience and training for young players, with an agreement that any successful players can move on to a higher level at a given point, usually in an association with a major-level parent team. This system can be implemented in many ways, both formally and informally. It is not to be confused with a practice squad, which fulfills a similar developmental purpose but the players on the practice squad are members of the parent team.