The original Maritime Junior A Hockey League was a Canadian Junior ice hockey league from 1968 until 1971 in the provinces of New Brunswick, Nova Scotia, and Prince Edward Island.
The league competed for the Memorial Cup until 1970 when it was relegated to Tier II Junior A and then competed one year for the Centennial Cup before becoming defunct.
Founded in 1968, the MJAHL was meant to be the Atlantic answer to the Ontario Hockey Association and Western Canada Junior Hockey League.
The league lost interest without Memorial Cup eligibility and folded in 1971, right after the Charlottetown Islanders came within two games of claiming the 1971 Centennial Cup.
In 1991, the Maritime Junior A Hockey League was created through the merger of the aforementioned NBJHL, IJHL, and MVJHL as the NBJHL and MVJHL merged in 1983 and the IJHL joined the fold in 1991 to reconsolidate Maritime Junior A.