The Mason–Dixon Conference is a defunct NCAA Division II (former NCAA College Division) athletics conference, formed in 1936 and disbanded in October 1978. A track championship bearing the conference's name continued for several years after the demise of the all-sports league. Its members were predominantly from states bordering the eponymous Mason–Dixon line. A similarly named Mason-Dixon Athletic Conference began play in NCAA Division II men's basketball in 1983–84 with three of the previous members (Mount St. Mary's University, Randolph–Macon College, University of Maryland–Baltimore County) plus Longwood University, Liberty University and the University of Pittsburgh at Johnstown.