William McGuire

William McGuire may refer to:


 * William Anthony McGuire (1881–1940), American screenwriter and dramatist
 * William Henry McGuire (1875–1957), Canadian senator
 * William J. McGuire, American social psychologist
 * William W. McGuire (contemporary, born 1948), American physician; former CEO of UnitedHealth Group
 * William Francis McGuire, American actor
 * Billy and Benny McGuire, "World's Heaviest Twins"
 * William McGuire (editor) (1917–2009), editor with Princeton University Press
 * William McGuire (footballer) (fl. 1881), Scottish international football player
 * William McGuire (judge), one of the three first judges of the Mississippi Territory
 * William T. "Bill" McGuire, a man murdered by his wife in 2004