William Parker
William Parker may refer to:
Entertainment
- William Parker (musician), American jazz double bassist
- William Parker (screenwriter), American screenwriter
- William Parker (Private Practice), character in the series TV Private Practice
- William Atticus Parker,, American filmmaker and actor
Military
- William Parker (privy counsellor), privy counsellor and standard-bearer to King Richard III
- William Parker (privateer), English captain and privateer, and also mayor of Plymouth
- Sir William Parker, 1st Baronet, of Harburn, British admiral
- Sir William Parker, 1st Baronet, of Shenstone, British admiral
- William Harwar Parker, United States Navy officer
- William Parker (Medal of Honor), American Civil War sailor and Medal of Honor recipient
- William Albert Parker, American Civil War Union Navy commander of James River forces
Politicians
- William Parker (died 1403), member of parliament for City of London
- William Parker (died 1421), MP for Hertfordshire
- William Parker (fl.1410), MP for Great Yarmouth
- William Parker, 4th Baron Monteagle, English politician
- William H. Parker (politician), US representative from South Dakota
- William Parker (Boston), businessman and politician in the United States
- William Parker (MP for West Suffolk), British Member of Parliament for West Suffolk, 1859–1880
- William Parker (Oregon politician), member of the Oregon Territorial Legislature, 1850
- William T. Parker, member of the Virginia Senate and House of Delegates
Religion
- William Parker (priest, died c. 1631), rose to archdeacon in two dioceses
- William Parker (priest, died 1802), Anglican controversialist
- William Parker (bishop), bishop of Shrewsbury in the Church of England
Sports
- William Parker (Oxford University cricketer), English cricketer
- William Parker (New Zealand cricketer), New Zealand cricketer
- William Parker (MCC cricketer), English cricketer
- William Parker (bowls), English bowls player
- Will Parker, rugby union player
- Sir William Parker, 3rd Baronet, British rower and Olympic medalist
- Smush Parker, American basketball player
- Tony Parker, French basketball player
Other people
- William Parker (early settler), settler in the Connecticut colony
- William Parker (builder), St. John's, Newfoundland builder
- William Parker (abolitionist), anti-slavery activist and freedom fighter
- William Parker (glassmaker), American glassmaker and inventor
- William Kitchen Parker, British physician and comparative anatomist
- William Parker (master), Australian barrister in New South Wales
- William Belmont Parker, United States editor
- William H. Parker (physicist), American physicist
- William H. Parker (police officer), Chief of the Los Angeles Police Department
- William Vann Parker, American mathematician