Shelbourne Football Club (Irish: Cumann Peile Shíol Broin) is an Irish association football club based in Drumcondra, Dublin, who play in the League of Ireland First Division.
Shelbourne were founded in Dublin in 1895. In 1904 the club joined the Irish Football League, which was then an all Ireland competition, before becoming founding members of the League of Ireland in 1921. Shelbourne have won the league 13 times and are one of three clubs to have won both the IFA Cup and the FAI Cup. They play their home matches at Tolka Park, in the Dublin suburb of Drumcondra. The club colours are primarily red and white, with home jerseys being predominantly red. "Shels" is the club's most common nickname, an abbreviation of Shelbourne.
In the 2004/2005 European season, Shelbourne became the first Irish club to reach the third qualifying round of the UEFA Champions League. Their performances in European competition and former striker Jason Byrne being capped for the Republic of Ireland whilst with the club, gained Shelbourne international exposure. The club lost their Premier Division licence for the 2007 season due to the club's debt situation. Since then, Shelbourne have mainly played in the second tier of the League of Ireland.