William Halligan (18 February 1886 – 1950) was an Irish professional association football player, who played as a centre forward. Born in Athlone, he started his career in his homeland before moving to England and playing for seven different Football League clubs. At the end of his career, he also played for two non-league teams. While playing for Nelson, he scored the club's first ever goal in the Football League, in a 1–2 loss to Wigan Borough on 27 August 1921.