The Leinster Football Association (LFA) is founded on October 27, 1892, at the Wicklow Hotel in Dublin, making it the oldest football association in the area now known as the Republic of Ireland.

The LFA is established to promote and organize association football in the Irish province of Leinster, an area outside the traditional Ulster heartlands of the sport. The founding meeting is attended by representatives of five football clubs: Dublin University A.F.C., Bohemian F.C., Leinster Nomads A.F.C., Montpelier F.C., and St. Helen’s School F.C. Rev. Canon Morley of St. Helen’s School chairs the meeting, and Dudley T. Hussey of Bohemians is appointed the first honorary secretary.

Shortly after its creation, the LFA affiliates with the Belfast-based Irish Football Association (IFA), which donates £50 to support the new association. The LFA quickly organizes its first Leinster Senior Cup in the 1892–93 season, with Leinster Nomads defeating Dublin University 2–1 in the inaugural final. Soon after, the Leinster Senior League is formed, featuring clubs such as Bohemians, Britannia, Dublin University, Leinster Nomads, Phoenix, and Montpelier.

The primary aim of the LFA is to foster football in Leinster at a time when the sport is largely concentrated in Ulster. It becomes a key driver in promoting amateur and youth football, organizing leagues, and holding cup competitions for clubs across the province.

The LFA eventually becomes disaffiliated from the IFA in 1921 due to disputes over perceived Belfast bias, Sunday matches, and differences in focus between amateur and professional football. This leads directly to the establishment of the Football Association of Ireland (FAI) in September 1921, in which the LFA plays a leading role.

In summary, the Leinster Football Association’s founding in 1892 marks the beginning of organized football governance in southern Ireland, overseeing competitions and nurturing clubs outside Ulster, and its establishment remains a key milestone in Irish football history.