This page lists the results of leadership elections held by the Nova Scotia New Democratic Party. Though the party came into existence in 1961 with the merger of the Co-operative Commonwealth Federation and the Canadian Labour Congress, the position of party leader was not officially created until the 1966 convention. Outgoing CCF leader Michael James MacDonald led the party in the legislature until 1963. The party was led into the 1963 provincial election by party president 1963 until 1966 James H. Aitchison who served as de facto leader until 1966 when he was officially elected to the position of leader.