This is a list of Mainland Junior B Hockey League Standings for the 1990-91 season.
Standings[]
Team GP W L T OTL GF GA P St. Margaret's Bay Mariners 30 22 6 2 0 223 138 46 Sackville Blazers 30 16 12 2 0 168 152 34 Windsor Royals 30 17 12 1 0 178 151 35 Truro Bearcats 31 2 27 2 0 113 241 6