The KB Cup (Pohár KB) is one of two rugby cup competitions in the Czech Republic, the other being the ČSRU Cup.
The Česká Rugbyová Unie (ČSRU) went into partnership with KB in 2003, with the partnership covering the national team as well as the national leagues.
The scores in blue are links to accounts of finals on the site of the Czech Rugby Union (ČSRU) - in Czech
| Year | Champion | Score | Runner-up | Place | |
| October 27, 2007 | RC Tatra Smíchov | 23-8 | RC Říčany | Stadion ragby Císařka, Prague | |
| June 7, 2008 | RC Říčany | 23-17 | RC Slavia Prague | ||
| May 31, 2009 | RC Říčany | 0-5 | RC Tatra Smíchov | Stadion Josefa Kohouta, Říčany |