William Glen

William Glen or Glenn may refer to:


 * William Glen (geologist) (born 1932), American geologist and historian of science
 * William Glen (poet) (1789–1826), Scottish poet
 * William Glen (footballer) (1903–1981), Irish football player
 * William Glenn (1914–2003), American cardiac surgeon
 * William E. Glenn (1926–2013), American inventor
 * William H. Glenn (1872–1940), American industrialist
 * Billy Glenn (William Spiers Glenn, 1877–1953), New Zealand politician