William Abbott

William, Bill or Billy Abbot/Abbott may refer to:


 * William Abbot (actor) (1790–1843), English actor and theatrical impresario
 * William Edward Abbott (1844–1924), Australian political figure; represented Electoral district of Upper Hunter 1889 to 1891
 * William Abbott (cricketer) (1856–1935), English cricketer
 * William Abbott (footballer), English outside-left
 * William Henry Abbott (1888–1974), Newfoundland merchant and politician
 * William Alexander Abbott (1897–1974), American vaudeville and film actor, of Abbott and Costello
 * William C. Abbott (c. 1817–1863), member of the Texas Senate
 * William Hawkins Abbott (1819–1901), American oil producer and trader
 * William J. Abbott (born 1962), American businessman and CEO of Great American Media
 * William L. Abbott (1861–1951), American mechanical engineer
 * William Louis Abbott (1860–1936), American physician and philanthropist
 * William Osler Abbott (1902–1943), American physician noted as co-developer of Miller-Abbott tube
 * Bill Abbott Jr. (born 1954), Canadian Olympic sailor and boatbuilder
 * Billy Abbott, a character on the American daytime soap opera The Young and the Restless
 * William Abbot (martyr) (bef 1576–1596), English Catholic martyr, executed along with William Knight
 * William Abbot (politician), English politician
 * William Wright Abbot (1922–2009), American archivist and historian