1991 Manitoba Junior B Hockey Playoffs

For the 1990-91 season, the Manitoba Amateur Hockey Association awarded the Provincial Championship, the Baldy Northcott Trophy, to the winner of the Manitoba Junior B Hockey League. see 1990-91 Manitoba Junior B Hockey League Season Selkirk Fishermen won the Baldy Northcott Trophy and advanced to the 1991 Keystone Cup =See also=
 * Junior B in Manitoba
 * List of Manitoba Junior B Champions
 * List of Manitoba Junior B Playoffs