The 2009–10 season is the Cornish Pirates 7th season in the second tier of the English rugby union league system, the RFU Championship and their first in the British and Irish Cup. The Pirates finished 6th in Stage One of the Championship, allowing them to qualify for the promotion stages, where they finished 3rd and did not qualify for the semi–finals. They also won the final of the British and Irish Cup beating Munster A 23–14.