The J. Pius Callaghan Cup is a trophy that was formerly given to the ice hockey Junior A Champion of Atlantic Canada from 1981 until 1991. The trophy is named for Joseph Pius Callaghan, sports writer for the Charlottetown Guardian, school teacher, and sports executive, by Hockey PEI. From 1991 until 2006, the trophy was awarded to the playoff champion of the Maritime Junior A Hockey League. In 2006 it was retired and now resides in the Charlottetown Civic Centre. Prior to 1981, the championship was just called the Atlantic Junior A Championship.