William Ballintrae Gillespie (6 August 1891 – 2 July 1981) was an Irish football player who played as a striker for Sheffield United over a twenty-year period from 1913 to 1932, scoring over 137 League and Cup goals in 492 games for the Yorkshire side.

[1] In 1910, Gillespie had a short trial with Irish side Linfield and was due to sign for them when Leeds City manager Frank Scott-Walford persuaded him to turn professional and join the Yorkshire club instead.

[1] Gillespie was denied an FA Cup Winner's medal in 1915, when he missed United's victory with a broken leg, received in the first game of the season against Sunderland in September 1914.

[1] Continuing to play regularly, Gillespie took over as club captain from George Utley in 1923 and in the following five seasons helped United reach two FA Cup semi-finals and finally won a winner's medal in 1925.

He was a part of the Ireland side that won the 1914 British Home Championship outright after gaining wins over England and Wales and a draw against Scotland at Windsor Park.

[2] In September 2013, a commemorative plaque was erected at Rab's Park, Kerrykeel, the local community sport field, in recognition of Gillespie's achievements and his links to the town.