Minor League Baseball rosters

Listed below are each of the active sports leagues in Minor League Baseball, with linked articles containing rosters for each active team in the league.

As with nearly all North American professional team sports, there are limits to the roster sizes of minor-league teams, which vary by classification level. Major League Baseball-affiliated teams are limited in how many players they may place on their active rosters, except for some "rookie" leagues. At lower classification levels, there are restrictions on how much prior professional experience players on the roster may have.

While a team's active roster consists of players eligible to compete for the team in games, a team's reserve roster consists of players on the injured list, those who are restricted or suspended, or who are otherwise temporarily inactive. Major league players on rehabilitation assignments do not count against active roster limits.

As of the 2021 season, the following limits are used:

International League

 * International League rosters

Pacific Coast League

 * Pacific Coast League rosters

Eastern League

 * Eastern League rosters

Southern League

 * Southern League rosters

Texas League

 * Texas League rosters

Midwest League

 * Midwest League rosters

Northwest League

 * Northwest League rosters

South Atlantic League

 * South Atlantic League rosters

California League

 * California League rosters

Carolina League

 * Carolina League rosters

Florida State League

 * Florida State League rosters

Arizona Complex League

 * Arizona Complex League rosters

Dominican Summer League

 * Dominican Summer League rosters

Florida Complex League

 * Florida Complex League rosters

Arizona Fall League

 * Arizona Fall League rosters