William Rathbone may refer to:

William R. Rathvon (1854–1939), sometimes incorrectly referred to as William V Rathvon or William V Rathbone, eye-witness to Abraham Lincoln's Gettysburg Address Several members Rathbone family of Liverpool, England: William Rathbone II (1696–1746), sawyer William Rathbone III (1726–1789), merchant and ship-owner William Rathbone IV (1757–1809), merchant and ship-owner William Rathbone V (1787–1868) William Rathbone VI (1819–1902), British Liberal Party, Member of Parliament 1880–1895 William Rathbone X OBE (1936-2022), member of the Council of the Queen's Nursing Institute, chief executive of the charity RUKBA, and trustee or advisor of nine other charities.

See also – one of at least two ships