William Henry Heald (August 27, 1864 – June 3, 1939) was an American banker, lawyer and politician, from Wilmington, in New Castle County, Delaware. He was a member of the Republican Party, and served two terms as U.S. Representative from Delaware.
Heald was a national bank examiner in Montana, Idaho, Washington, and Oregon from 1888 until 1892, when he was admitted to the bar in Wilmington in 1897. He was appointed Postmaster for Wilmington from 1901 until 1905.
Heald was elected to the U.S. House of Representatives in 1908 and won election again in 1910. During these terms, he served in the Republican majority in the 61st Congress and in the minority in the 62nd Congress. He did not seek reelection in 1912 and served two terms, from March 4, 1909, until March 3, 1913. This was during the administration of U.S. President William H. Taft.
Subsequently, he resumed the practice of law and was engaged in banking. He was a member of the Board of Trustees of the University of Delaware from 1915 until 1939 and was president of that board from 1936 until his death.