William Dubois (1841 – April 29, 1910) was an American civil servant who served as Chief Usher of the White House in Washington, D.C., from June 1896 to January 1901.

[5] Dubois was appointed an usher at the White House on April 29, 1881,[6] although he continued to hold his job on the police force.

[7] He succeeded Carlos E. Dexter, a United States Army officer who had served as chief usher from March 1893 to December 1895.

[10] As Chief Usher, Dubois oversaw a staff of 10[11] and had supervisory control over the police and guards who served inside the White House (but not outside on its grounds).

More than 500 people per day passed through the building on tours and official business,[13] and Dubois personally oversaw the hundreds of items turned into the Executive Mansion's lost-and-found department.

[17] Dubois' health remained fragile, however, and on January 2, 1902, he asked to be transferred to less onerous duties at another executive branch agency.