U21 Champions - History
| Year | Champions | Runners-Up |
| 1966 | Castletownbere | Garnish |
| 1967 | Adrigole | Garnish |
| 1968 | Castletownbere | St. Marys |
| 1969 | Adrigole | Urhan+St.Mary's |
| 1970 | Adrigole | Castletownbere |
| 1971 | Adrigole | Castletownbere |
| 1972 | Adrigole | Urhan |
| 1973 | Castletownbere | |
| 1974 | Adrigole | Castletownbere |
| 1975 | Castletownbere | Adrigole |
| 1976 | Urhan | Adrigole |
| 1977 | Castletownbere | |
| 1978 | Castletownbere | |
| 1979 | Adrigole | |
| 1980 | Urhan | |
| 1981 | Castletownbere | |
| 1982 | Adrigole+Bere Island | |
| 1983 | Castletownbere | Urhan |
| 1984 | Glengarriff+Bere Island | Urhan |
| 1985 | Castletownbere | |
| 1986 | Castletownbere | Urhan |
| 1987 | Urhan | Castletownbere |
| 1988 | Castletownbere | Garnish |
| 1989 | Adrigole | Castletownbere |
| 1990 | Adrigole | Urhan |
| 1991 | Castletownbere | Adrigole |
| 1992 | ||
| 1993 | Garnish | Castletownbere |
| 1994 | ||
| 1995 | Castletownbere | Garnish |
| 1996 | Garnish | Castletownbere |
| 1997 | ||
| 1998 | Castletownbere | Adrigole |
| 1999 | Castletownbere | Adrigole |
| 2000 | Adrigole | Urhan |
| 2001 | Urhan | Castletownbere |
| 2002 | ||
| 2003 | Adrigole | Urhan |
| 2004 | Castletownbere | Adrigole |
| 2005 | Castletownbere | Urhan |
| 2006 | Castletownbere | Urhan |
| 2007 | Urhan | Castletownbere |
| 2008 | Castletownbere | Urhan |
| 2009 | Urhan | Garnish |
| 2010 | ||
| 2011 | ||
| 2012 | Adrigole | Castletownbere |
| 2013 | Garnish | Urhan |
| 2014 | Castletownbere | Urhan |
| 2015 | Urhan | Gaha Gaels |
| 2016 | Castletownbere | Urhan |
