Gerard Reilly is a Scottish former footballer who played as a goalkeeper. Reilly grew up in St Marys, Dundee. He played junior football with Broughty Athletic before joining Dundee United in August 1969. He was immediately called up to play for the reserve team as cover for Hamish McAlpine, who had a long-term injury. On 15 September 1969, Reilly was named as a substitute for Dundee United's Inter-Cities Fairs Cup tie against Newcastle United. Aged 16 and having never even watched the first team play before, Reilly made his senior debut after 72 minutes of the match, replacing the injured Donald Mackay. This proved to be his only first team appearance for the club, and he was released in May 1970 following McAlpine's return to fitness.