Joseph Victor Adamec (August 13, 1935 – March 20, 2019) was an American prelate of the Roman Catholic Church who served as bishop of the Diocese of Altoona-Johnstown, Pennsylvania from 1987 to 2011.
On March 1, 2016, Pennsylvania Attorney General Kathleen Kane implied that as bishop, Adamec led a major cover-up scandal involving the sexual assault of hundreds of children by Diocese of Altoona-Johnstown priests.