William James Gault was an American politician who served in the Oklahoma Territorial Legislature, as Mayor of El Dorado, Kansas, in the 1870s, and as Mayor of Oklahoma City from 1890 to 1892.

William James Gault was born in Washington County, New York, in January 1830.

He participated in the Land Run of 1889 and formed a lumber company in Oklahoma City.

[2] He was elected Mayor of Oklahoma City in 1890 defeating Henry Overholser and served between August 12, 1890, and April 12, 1892.

[1] Gault's son, also named William, lost his 1915 Oklahoma City mayoral campaign to Ed Overholser.