The Munster Junior Cup is a rugby union competition played in the province of Munster, Ireland. The competition was established for the stronger junior clubs and the second teams of the Senior clubs in the province of Munster. The current champions are University College Cork (UCC) in 2024. The competition has traditionally been dominated by senior clubs.
| Team | Winner | Winning Years | |
|---|---|---|---|
| 1 | Cork Constitution | 19 | 1949, 1951, 1956, 1957, 1958, 1973, 1982, 1983, 1986, 1987, 1988, 1992, 1994, 1995, 2003, 2005, 2008, 2012, 2018 |
| 2 | Shannon | 11 | 1914, 1920, 1924, 1925, 1939, 1940, 1954, 1961, 1962, 1996, 2015 |
| 2 | UCC | 11 | 1921, 1933, 1950, 1953, 1963, 1967, 1969, 1975, 1977, 1979, 2024 |
| 4 | Garryowen | 9 | 1910, 1955, 1970, 1976, 1978, 1993, 2007, 2013, 2023 |
| Young Munster | 9 | 1911, 1922, 1927, 1959, 1960, 1984, 1999, 2016, 2022 | |
| 5 | Thomond | 7 | 1971, 1980, 1981, 1985, 1989, 1990, 1991 |
| 6 | Highfield | 5 | 1937, 1942, 1945, 1972, 2019 |
| Nenagh Ormond | 5 | 1931, 1935, 1948, 2000, 2004 | |
| 7 | Dolphin | 4 | 1913, 1923, 1926, 1944 |
| Richmond | 4 | 1936, 1943, 1946, 1952 | |
| 8 | UL Bohemians | 3 | 1932, 2009, 2010 |
| 9 | Waterford City | 2 | 1928, 1930 |
| Abbeyfeale | 2 | 1964, 1966 | |
| Waterpark | 2 | 1938, 1974 | |
| Midleton | 2 | 1997, 1998 | |
| 10 | Crescent College F.C. | 1 | 1909 |
| Limerick City Gaullies | 1 | 1912 | |
| Presentation | 1 | 1929 | |
| Tralee | 1 | 1934 | |
| Clanwilliam | 1 | 1947 | |
| Old Christians | 1 | 1965 | |
| St. Mary's | 1 | 1968 | |
| Clonakilty | 1 | 2001 | |
| Kilfeacle & District | 1 | 2002 | |
| Cobh Pirates | 1 | 2006 | |
| Cashel | 1 | 2011 | |
| Clonmel | 1 | 2014 | |
| Bandon | 1 | 2017 |