John William Chapman (September 8, 1894 – August 17, 1978) was the 37th Lieutenant Governor of Illinois. Chapman was born in Crete, Nebraska September 8, 1894. Chapman attended Public school in Chicago. He graduated from the University of Chicago in 1915 and received a Juris Doctor from University of Chicago Law School in 1917. He entered private practice in Chicago in the 1920s until he moved to Springfield, Illinois in 1941. In 1927, he was elected an Alderman on the Chicago City Council.