William Halsey (disambiguation)
# William Halsey (disambiguation)

William Halsey may refer to:

* William Halsey Jr. (1882–1959), U.S. Naval officer and the commander of the United States Third Fleet during part of the Pacific War against Japan.
* William F. Halsey Sr. (1853–1920), his father, U.S. naval officer
* William Darrach Halsey, American encyclopaedist and lexicographer
* William Melton Halsey (1915-1999), American abstract artist
* William Halsey (mayor) (1770–1843), mayor of Newark, New Jersey, 1836–1837
* William Halsey (judge), Irish politician, soldier and judge
