| Poulton Priory | |
| Full: | Priory of St Mary |
| Order: | Gilbertine |
| Established: | 1350 |
| Disestablished: | 1539 |
| Founder: | Thomas Seymour |
| Location: | Poulton, Gloucestershire |
| Map Type: | Gloucestershire |
| Coordinates: | 51.699°N -1.8639°W |
Poulton Priory or the Priory of St Mary was a Gilbertine priory in Poulton, Gloucestershire, England. It was founded as a chantry chapel in 1337 by Sir Thomas Seymour and became a house of Gilbertine canons in 1350. From 1539, with the Dissolution of the Monasteries, the priory was used as the parish church for Poulton. It was demolished in 1873.
A Tudor style mansion was built on the site by Sir Arthur Blomfield for the Marshall family c. 1897. It was later owned by James Joicey and Major Alexander Black-Mitchell. In World War II, it was used as a children's hospital.