Foundation Greystones A.F.C. was founded in 1924, after a group of local teenagers came together to form the town's first football team. The first meeting was held in the kitchen of Hugh and Henry Lawless in May 1923; their house was located on North Beach, close to the marina. In addition to the Lawless brothers, the founding players included Tom Quinn, Larry Byrne and Frankie Ward. By the following year, the team had joined the Dublin Boys Realm League, held every Sunday in the
Phoenix Park. With no Sunday bus service, players relied on a boat, then a train and finally a tram to get to matches in the Phoenix Park. In 1947, the club joined the newly formed
Wicklow League. Their club colours were red with a black and white trim. The club made it to the second round of the
FAI Cup in 2002, where they were drawn at home to
Sligo Rovers. Despite a defensive performance that drew praise, Greystones lost the match 1–0. In May 2005, the club won promotion to the Leinster Senior League's top division, the
Senior Division. After finishing sixth in the league, a major milestone came in 2006 when the club won the
Metropolitan Cup. In 2011, Greystones reached
the third round of the FAI Cup, where they were drawn against
League of Ireland side
Shelbourne. An attendance of 600 at the
Carlisle Grounds saw Shelbourne win the match 3–1. Before the merger, the club had two teams; one that played in the Sunday Senior 1 division of the Leinster Senior League and the other in the Saturday Major 1 division of the Leinster Senior League.
Merger In 2015, Greystones A.F.C. amalgamated with local neighbours, Greystones United, to form
Greystones United A.F.C. ==Rivalries==