William Parker may refer to:

Entertainment William Parker (musician) (born 1952), American jazz double bassist William Parker (screenwriter) (1886–1941), American screenwriter William Parker (Private Practice), character in the series TV Private Practice William Atticus Parker, (born 2004), American filmmaker and actor Bill Parker (broadcaster) (William Parker, 1928–2019), American broadcaster Bill Parker (comics) (William Lee Parker, 1911–1963), American comic book writer and editor F. William Parker (born 1941), American film, stage and television actor

Military William Parker (privy counsellor) (c. 1465–1510), privy counsellor and standard-bearer to King Richard III William Parker (privateer) (died 1617), English captain and privateer, and also mayor of Plymouth Sir William Parker, 1st Baronet, of Harburn (1743–1802), British admiral Sir William Parker, 1st Baronet, of Shenstone (1781–1866), British admiral William Harwar Parker (1826–1896), United States Navy officer William Parker (Medal of Honor) (1832–?), 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 (MP) for City of London William Parker (died 1421), MP for Hertfordshire William Parker (fl.1410), MP for Great Yarmouth William Parker, 4th Baron Monteagle (1575–1622), English politician William H. Parker (politician) (1847–1908), US representative from South Dakota William Parker (Boston) (1793–1873), businessman and politician in the United States William Parker (MP for West Suffolk) (1802–1892), British Member of Parliament for West Suffolk, 1859–1880 William Parker (Oregon politician), member of the Oregon Territorial Legislature, 1850 William T. Parker (1928–2014), 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) (c.1749–1802), Anglican controversialist William Parker (bishop) (1897–1982), bishop of Shrewsbury in the Church of England

Sports William Parker (Oxford University cricketer) (1832–1873), English cricketer William Parker (New Zealand cricketer) (1862–1930), New Zealand cricketer William Parker (MCC cricketer) (1886–1915), English cricketer William Parker (bowls) (1892–1979), English bowls player Will Parker (rugby union) (1873–1955), rugby union player Sir William Parker, 3rd Baronet (1889–1971), British rower and Olympic medalist Smush Parker (born 1981), American basketball player Tony Parker (William Anthony Parker II, born 1982), French basketball player Billy Parker (baseball) (William David Parker, 1942–2003), American baseball player Billy Parker (gridiron football) (William Parker V, born 1981), American football linebacker Willie Parker (offensive lineman) (William Nolen Parker, born 1948), American football player Wil Parker (born 2002), Australian rules football player

Other people William Parker (early settler) (1618–1686), settler in the Connecticut colony William Parker (builder) (1800–1854), St. John's, Newfoundland builder William Parker (abolitionist) (1821–1891), anti-slavery activist and freedom fighter William Parker (glassmaker) (?–1817), American glassmaker and inventor William Kitchen Parker (1823–1890), British physician and comparative anatomist William Parker (master) (1870–1953), Australian barrister in New South Wales William Belmont Parker (1871–1934), United States editor William H. Parker (physicist) (1941–), American physicist William H. Parker (police officer) (1905–1966), chief of the Los Angeles Police Department William Riley Parker (1906–1968), American scholar of John Milton William Vann Parker (1901-1987), American mathematician Bill Parker (inventor) (William P. Parker), American artist, scientist, and entrepreneur Will Parker (judge), American judge and lawyer

See also Bill Parker (disambiguation) Billy Parker (disambiguation) Willie Parker (disambiguation)