William Moore McCulloch (November 24, 1901 – February 22, 1980) was an American politician and a member of the Republican Party who served as a U.S.
Representative for Ohio's 4th congressional district from 1947 to 1973.
McCulloch was born near Holmesville, Ohio.
He attended the College of Wooster in Wooster, Ohio.
He graduated from the college of law of Ohio State University at Columbus, Ohio, in 1925.
He was admitted to the bar the same year and commenced practice in Piqua, Ohio.
He was a member of the Ohio House of Representatives from 1933 to 1944, serving as minority leader from 1936 to 1939 and as speaker from 1939 to 1944.
He served in the United States Army from December 26, 1943, to October 12, 1945.
McCulloch was elected as a Republican to the Eightieth Congress, by special election, on November 4, 1947, to fill the vacancy caused by the resignation of Robert Franklin Jones.
He was re-elected to twelve consecutive Congresses.