The Leader Cup has been presented to the winner of the Longford Senior Football League competition since 1937 with Drumlish winning the first Leader Cup. The cup is named after the Longford Leader newspaper who sponsored its presentation. Mullinalaghta has the rare privilage of having won the Leader Cup for five years in a row from 1947 to 1951. Cashel won the Leader Cup for three years in a row from 1976 to 1978. With the exception of 1938, 1967, 2018 & 2020 the Leader Cup has been contested and won every year since 1937.

Year	Leader Cup Winner
2020	No Competition (Covid-19)
2019	Mullinalaghta St. Columbas
2018	Final Not Played (Mullinalaghta vs Killoe)
2017	Mullinalaghta St. Columbas
2016	Mullinalaghta St. Columbas
2015	Killoe Young Emmets
2014	Killoe Young Emmets
2013	Mullinalaghta St. Columbas
2012	Killoe Young Emmets
2011	Clonguish
2010	Killoe Young Emmets
2009	Abbeylara
2008	Clonguish
2007	Clonguish
2006	Dromard
2005	Killoe Young Emmets
2004	Abbeylara
2003	Clonguish
2002	Clonguish
2001	Dromard
2000	Abbeylara
1999	Fr. Manning Gaels
1998	Abbeylara
1997	Fr. Manning Gaels
1996	Rathcline
1995	Mostrim
1994	St. Marys Granard
1993	Ardagh St. Patricks
1992	Mostrim
1991	Longford Slashers
1990	Colmcille
1989	Rathcline
1988	Longford Slashers
1987	Fr. Manning Gaels
1986	Fr. Manning Gaels
1985	Killoe Young Emmets
1984	Mostrim
1983	Cashel
1982	Cashel
1981	Rathcline
1980	Rathcline
1979	Clonguish
1978	Cashel
1977	Cashel
1976	Cashel
1975	Rathcline
1974	Rathcline
1973	Clonguish
1972	Longford Slashers
1971	Rathcline
1970	Mostrim
1969	St. Marys Granard
1968	Clonguish
1967	No Competition
1966	St. Marys Granard
1965	Clonguish
1964	St. Marys Granard
1963	Longford Slashers
1962	Longford Slashers
1961	Killoe Young Emmets
1960	Ballymahon
1959	Killoe Young Emmets
1958	Longford Slashers
1957	Colmcille
1956	Carrickedmond
1955	Ardagh St. Patricks
1954	Colmcille
1953	Young Irelands
1952	Clonguish
1951	Mullinalaghta
1950	Mullinalaghta
1949	Mullinalaghta
1948	Mullinalaghta
1947	Mullinalaghta
1946	Drumlish
1945	Mullinalaghta
1944	Drumlish
1943	Drumlish
1942	Seán Connollys
1941	St. Brigids Killashee
1940	St. Brigids Killashee
1939	Drumlish
1938	No Competition
1937	Drumlish

That 1937 Leader Cup actually completed in late 1938, hence it was too late to start a new league in 1938, so the competition started afresh in 1939 with no Leader Cup title for 1938. The 1965 & 1966 Leader Cup finals were both decided in 1967 which left no time in that year to play a 1967 Leader Cup, hence no Leader Cup title for 1967. The 2018 Leader Cup final was never played. Mullinalaghta and Killoe reached the decider but it was not played due to Mullinalaghta’s involvement in the Leinster Club Championship campaign and ongoing activity in the All Ireland Club Championship which stretched into 2019, hence no Leader Cup title for 2018. Finally, the 2020 Leader Cup competition was not played due to the impact from the Covid-19 pandemic.

The precursor to the Leader Cup was the Senior ‘League-Championship’ competition which ran from the 1910’s onward.