William Henry Stafford (October 12, 1869 – April 22, 1957) was a U.S. Republican politician.
He was born in Milwaukee, Wisconsin. He was elected as a Republican to the United States House of Representatives from Wisconsin and served from March 4, 1903 to March 3, 1911. He was an unsuccessful candidate for renomination in 1910. He was elected to the House of Representatives in 1912 and served from March 4, 1913 to March 3, 1919. He was an unsuccessful candidate for re-election in 1918. He was elected to the House of Representatives in 1920 and served from March 4, 1921 to March 3, 1923. He was an unsuccessful candidate for re-election in 1922 and for election in 1926. He was elected to the House of Representatives in 1928 and served from March 4, 1929 to March 3, 1933. He was an unsuccessful candidate for renomination in 1932 and for the Republican nomination for the United States Senate from Wisconsin in 1938. He died in Milwaukee, Wisconsin.