William Mayhew

William Mayhew may refer to:
 * William Mayhew (politician) (1787–1855), British politician
 * William Mayhew (doctor) (1821–1905), doctor in Toodyay, Western Australia
 * William Mayhew (died 1559), English politician, Great Yarmouth borough, 1554
 * William Mayhew (librarian), librarian of the Harvard Library