William Donnelly (1872 – 1934) was an Irish footballer who played as a goalkeeper for Vale of Clyde, Hibernian, Clyde, Celtic, Belfast Celtic and Liverpool during the 1890s and early 1900s. Born in Magherafelt and raised in Scotland, he played for a number of Scottish teams and gained a reputation as an expert in stopping penalties before signing for Liverpool from Clyde in May 1896. He was the club's second-choice goalkeeper behind Harry Storer during the 1896–97 Football League season and had a run in the side after Storer was injured, becoming the second Irishman to play for Liverpool.