William Swan

William or Bill Swan may refer to:


 * Sir William Swan, 1st Baronet (1631–1680), of the Swan baronets
 * Sir William Swan, 2nd Baronet (1667–1712), of the Swan baronets
 * William Swan (silversmith) (1715–1774), American silversmith
 * William Swan (missionary) (1791–1866), translator of the Bible into Mongolian
 * William Swan (physicist) (1818–1894), Scottish physicist
 * William Graham Swan (1821–1869), American politician
 * William Turnbull Swan (1828–1875), New Zealand politician
 * William Swan (British Army officer) (1914–1990), British Army officer and agriculturalist
 * William Swan (aviation pioneer) (1902–1933), rocketplane entrepreneur
 * Bill Swan (writer) (born 1939), Canadian children's author
 * Billy Swan (born 1942), American singer-songwriter
 * Bill Swan (footballer) (born 1956), Australian rules footballer
 * Will Swan (musician) (born 1985), American guitarist with post-hardcore band Dance Gavin Dance
 * Will Swan (footballer) (born 2000), English footballer
 * Bill Swan, American indie rock musician with Beulah