William Markham

William Markham may refer to:


 * William Markham (bishop) (1710–1807), English scholar and religious figure
 * William Markham (governor) (1635–1704), first acting governor of colonial Pennsylvania
 * William Markham (mayor) (1811–1890), Atlanta businessman and mayor
 * William Markham (MP) (by 1533–1571), MP for Nottingham (UK Parliament constituency)
 * William H. Markham (1888–1958), Wisconsin politician
 * William Orlando Markham (1818–1891), English physician and pioneer of cardiology