William Copeland may refer to:J. William Copeland (1914–1988), American politician and jurist from North Carolina William Copeland (brewer) (1834–1902), Norwegian-American brewer William Copeland (historian) (1936–2023), Finnish-American historian William Copeland (umpire) (1929–2011), Australian test cricket umpire William Fowler Mountford Copeland (1872–1953), British horticulturist William L. Copeland (1846–1885), American state legislator and police officer from Arkansas William H. Copeland (1848–1931), American state legislator from Ohio William Taylor Copeland (1797–1868), British businessman and politician