John Jeremiah Lawler (August 4, 1862 – March 11, 1948) was an American prelate of the Roman Catholic Church. He served as bishop of the Diocese of Lead (later changed to Diocese of Rapid City) in South Dakota from 1916 until his death in 1948. He previously served as an auxiliary bishop of the Archdiocese of Saint Paul in Minnesota from 1910 to 1916.