William Mercer

William Mercer may refer to:

Sports

Billy Mercer (rugby league), rugby league footballer of the 1930s for England and St Helens RLFC
William Mercer (cricketer), English cricketer
Willie Mercer, Scottish footballer

Others

William Mercer (poet), Scottish poet and army officer
William Thomas Mercer, British Colonial Secretary in Hong Kong, 1859–1868
William W. Mercer, American politician from Montana and former United States Attorney
William (Rosko) Mercer, known as Rosko, American news announcer and disc jockey
Bill Mercer, American sportscaster
William Mercer (Australian politician), British Army officer, landowner, pastoralist, and politician in colonial New South Wales