William Hart

William Hart, also Will, Willy, Bill, or Billy Hart may refer to:

Arts and entertainment

 * William Hart (actor) (died 1650), English Caroline actor
 * William Hart (painter) (1823–1894), Scottish-American painter
 * William Hart (singer) (1945–2022), American soul singer, member of The Delfonics
 * William Matthew Hart (1830–1908), British lithographer and bird artist
 * William S. Hart (1864–1946), American silent film actor, screenwriter, director, and producer
 * William Sterling Hart (1917–2006), American actor, better known as Robert Sterling
 * Will Cullen Hart (born 1971), American musician and artist
 * Billy Hart (born 1940), American jazz drummer

Judiciary

 * William Hart of Livelands, Scottist jurist and 16th century Lord Advocate
 * William H. H. Hart (died 1918), American California attorney general
 * William L. Hart (1867–1962), American justice of the Supreme Court of Ohio
 * William Thomas Hart (1929-2023), United States federal judge

Sports

 * Bill Hart (footballer) (1923–1990), English professional footballer
 * Bill Hart (infielder) (1913–1968), American professional baseball third-baseman with the Brooklyn Dodgers
 * Bill Hart (pitcher) (1865–1936), American professional baseball pitcher
 * Billy Hart (baseball) (1866–1944), American professional baseball player

Other fields

 * William Hart (bishop) (1904–1992), Bishop of Dunkeld
 * William Hart (Medal of Honor) (1866–1899), American sailor
 * William Hart (MP), MP for Bletchingley
 * William Hart (police chief) (1924–2003), Detroit Police Chief
 * William Hart (politician) (1825–1904), Tasmanian businessman
 * William Hart (priest) (1558–1583), Catholic martyr
 * William Hart, drilled the first natural gas well in the US, leading to the Fredonia Gas Light Company's formation
 * William C. Hart (1898–1963), United States Coast Guard member awarded the Gold Lifesaving Medal
 * William E. Hart (1843–1874), Union Army soldier during the American Civil War
 * William Ewart Hart (1885–1943), Australian aviator and dentist
 * William Neville Hart (1741–1804), British banker, politician and diplomat
 * William Stanford Hart Sr. (1925–1999), mayor of East Orange, New Jersey

Fictional characters

 * Bill Hart (comics), the civilian identity of the Lev Gleason Publications and Image Comics superhero Daredevil