The 2021–22 RFU Championship Cup was the third season of the annual rugby unionChampionship Cup competition for second tier, professionalEnglish clubs playing in the RFU Championship.[1] The competition returned after a 14-month hiatus, following the cancellation of the previous year's tournament and the mid season cancellation of the 2019–20 tournament.
The competition format is two-legged knockout ties with a first round of five matches, followed by quarter-finals, semi-finals and final. The Championship winners, Ealing Trailfinders received a bye to the quarter-finals. The first round matches took place on 9 April, following the final round of Championship fixtures. In the competition's inaugural season, the RFU had set out the pool matches in a regional format to encourage derby games, but this year's competition format is more loosely structured.
The four overall winners from round 1 along with the best two losing teams and Ealing Trailfinders will contest the two-legged quarter-finals. The competition will then be played in a single-leg straight knockout format.