St Catherine's is an inner-city area of Lincoln in Lincolnshire, England at the southern end of the High Street, and centred on a roundabout at its junction with the A15, B1190 (Newark Road) and South Park Avenue (continuation of the A15). The area is bordered by South Common in the east and the River Witham in the west. It is built over the site of the 12th century Priory of Saint Katherine without Lincoln, a monastic community that ran the Hospital of Saint Sepulchre.