Ryan Casey (born 3 January 1979) is an Irish retired footballer and he played as left back. Ryan was appointed as the FAI Development Officer for Sligo in July 2007. Casey began his career with Swansea City having signed as a 17-year-old from Galway Hibernians A.F.C. He has also played for St Patrick's Athletic, Cork City, Galway United, Athlone Town and Longford Town.