Polsloe Priory, also known as St Katherine's Priory, was a Benedictine priory for women (a nunnery) in Devon, England. It was founded in around 1159 on land to the east of Exeter, on a site that is now part of the city's suburb of Polsloe. At the time it was the only religious house for women in Devon, but two others were founded later: at Cornworthy and Canonsleigh Abbey.