The Cheshire Cup is an annual rugby union knock-out club competition organized by the Cheshire Rugby Football Union.

It was first introduced in the 1877–78 season as the Cheshire Challenge County Cup and the inaugural competition was won by Birkenhead Park, who along with eight other local sides including New Brighton and Sale, made up the club members of the Cheshire RFU at that time.

The Cheshire RFU reintroduced the cup during the 1969–70 season, with Sale the first winners of the competition in over 80 years.

[1] The Cheshire Cup is currently the premier county cup competition for club sides in tier 4 (National League 2 North) and tier 5 (National League 3 North or National League 3 Midlands) of the English rugby union system that are based in either Cheshire, Merseyside or the Isle of Man.

The current format is as a knock-out cup with a quarter-final, semi-final and final which is held at a neutral venue during the latter stages of the season (March–May).