William McNulty

William McNulty may refer to:


 * William N. McNulty (1829–1922), American Roman Catholic priest
 * William Charles McNulty (1889–1963), American artist
 * William A. McNulty (1910–2005), U.S. Army officer
 * Bill McNulty (born 1946), American baseball player.
 * Billy McNulty (born 1949), Scottish football goalkeeper
 * William McNulty, founder of Team Rubicon in 2010