Joe or Joseph Costello may refer to: Joe Costello (politician) (born 1945), Irish Labour Party politician Joseph Costello (software executive) (born 1953), American computer software executive Joseph Arthur Costello (1915–1978), American bishop of the Catholic Church Joseph J. Costello (1892–1960), mayor of Galway Joe Costello (American football) (born 1960), American football defensive end