William Mallory (died 1646) was an English politician.
William Mallory is also the name of: William Mallory (fl.1419), Member of Parliament (MP) for Leicestershire William Mallory (MP for Huntingdonshire), see Huntingdonshire William H. Mallory state legislator in Mississippi William L. Mallory Sr. (1931–2013), African-American politician in the Ohio House of Representatives Bill Mallory (1935–2018), former American football player and coach Bill Mallory (American football, born 1901) (1901–1945), American football player