St Lawrence's Church at Stratford-sub-Castle is a 13th-century Grade I listed Church of England parish church, to the north of Salisbury, Wiltshire, England. It stands close to the abandoned settlement of Old Sarum and the River Avon, and is about 2 miles (3.2 km) north of Salisbury Cathedral.

Stratford-sub-Castle in Wiltshire, England, was anciently a separate village and civil parish, but is now in Salisbury. At approximately 170 ft above sea level, it is dominated to the east by the remains of an Iron Age hillfort, within the boundaries of which a Norman castle was built. This now-ruined castle led to the village taking the name Stratford-under-Castle, later changing to Stratford sub Castle. Stratford lies south-west of the abandoned medieval settlement of Old Sarum which was also built within the area of the hillfort.