Cork Junior B Hurling Championship
The Cork Junior B Hurling Championship is an annual hurling competition organised by the Cork County Board of the Gaelic Athletic Association since 1984 for junior hurling teams in the county of Cork in Ireland. It is the fifth tier hurling championship in the county.
The series of games are played during the summer with the county final currently being played in Páirc Uí Rinn in July. Initially played as a knock-out competition, the championship currently uses a double elimination format whereby each team is guaranteed at least two games.
The Cork Junior B Hurling Championship is an integral part of the wider Munster Junior B Club Hurling Championship. The winners of the Cork county final join the champions of the other hurling counties to contest the provincial championship.
Killavullen are the title-holders after defeating White's Cross by 2-14 to 1-8 in the 2017 championship final.| Year | Winner | Score | Opponent | Score |
| 2019 | Castletownroche | 3-22 | Lough Rovers | 2-17 |
| 2018 | White's Cross | 0-12 | O'Donovan Rossa | 0-11 |
| 2017 | Killavullen | 2-14 | Whites Cross | 1-08 |
| 2016 | Whitechurch | 2-20 | Killavullen | 1-08 |
| 2015 | Shanballymore | 1-15 | Bantry Blues | 1-13 |
| 2014 | Ballyclough | 1-10, 1-19 | Dromtarriffe | 1-10, 3-02 |
| 2013 | O'Donovan Rossa | 2-11 | Ballyclough | 0-12 |
| 2012 | Castlemagner | 0-14 | Rathpeacon | 1-07 |
| 2011 | Kilmichael | 1-18 | Ballinacurra | 0-08 |
| 2010 | Doneraile | 2-08 | Rathpeacon | 1-09 |
| 2009 | Ballinacurra | 4-12 | Randal Óg | 1-20 |
| 2008 | Lisgoold | 2-19 | St. Mary's | 1-07 |
| 2007 | St. Ita's | 0-11, 0-12 | Castlemagner | 0-11, 0-07 |
| 2006 | Dohenys | 0-09 | Killavullen | 0-06 |
| 2005 | St. James | 2-06 | Lough Rovers | 0-07 |
| 2004 | O'Donovan Rossa | 3-17 | Lismire | 1-07 |
| 2003 | St. Colum's | 3-11 | Lisgoold | 1-12 |
| 2002 | St. Oliver Plunketts | 0-11 | Kilshannig | 0-10 |
| 2001 | Harbour Rovers | 3-08 | St. Mary's | 2-04 |
| 2000 | Randal Óg | 0-10 | Lisgoold | 0-06 |
| 1999 | Araglin | 1-11 | St. Oliver Plunketts | 0-10 |
| 1998 | Castletownroche | 2-12 | Tullylease | 0-05 |
| 1997 | Carrignavar | 1-10 | Kilshannig | 0-07 |
| 1996 | Buttevant | 1-11 | Dohenys | 0-05 |
| 1995 | Ballyhooly | 2-14 | Tullylease | 0-07 |
| 1994 | Lisgoold | 3-06 | Buttevant | 1-11 |
| 1993 | Ballygiblin | 4-12 | Belgooly | 1-12 |
| 1992 | Randal Óg | 3-16 | Tullylease | 2-03 |
| 1991 | Castlelyons | 2-07 | Whites Cross | 1-04 |
| 1990 | Harbour Rovers | 0-12 | Rathpeacon | 0-08 |
| 1989 | Gabriel Rangers | 3-07 | Buttevant | 0-11 |
| 1988 | Kilshannig | 0-10 | Whitechurch | 0-01 |
| 1987 | Liscarroll | 2-08 | Randal Óg | 1-07 |
| 1986 | Iveleary | 0-07 | St. Mary's | 1-01 |
| 1985 | Ballyhooley | 4-08 | Dromtarriffe | 0-01 |
| 1984 | Kilbree | 4-03 | Kilshannig | 3-05 |
Junior B Inter-Divisional Hurling Championship
