Jacobs FC were an Irish football club from Dublin that played in the League of Ireland during the 1920s and 1930s.Jacobs were one of the founder members of the League of Ireland (then known as the Free State League) in 1921. Playing their home games at Rutland Avenue, the club saw little success during their eleven seasons in the League before leaving at the end of the 1931/32 season with Brideville, as the League dropped from twelve to ten clubs.