The Tewkesbury Medieval Festival is a medieval fair held over the second weekend of every July near the town of Tewkesbury, United Kingdom. Its main feature is the re-enactment of the Battle of Tewkesbury, which was fought in 1471. Located on parts of the ground where the original battle was fought, the festival also features a medieval camp, in which traders ply their wares and visitors are entertained by musicians and acrobats. The largest medieval fair in the United Kingdom, the Tewkesbury Medieval Festival was listed in Footprint England as one of the "ten most bizarre festivals" in the country.

Tewkesbury is a market town and civil parish in the north of Gloucestershire, England. The town grew following the construction of Tewkesbury Abbey in the twelfth century and played a significant role in the Wars of the Roses. It stands at the confluence of the River Severn and the River Avon, and thus became an important trading point, which continued as railways and, later, the M5 and M50 motorway connections were established. The town gives its name to the Borough of Tewkesbury, a local government district of Gloucestershire. The town lies on the border with Worcestershire, marked largely by the Carrant Brook.