St John the Baptist's Church is an Anglican church in Crawley, West Sussex, England. It is the parish church of Crawley, and is the oldest building in the town centre, dating from the 1250—although many alterations have been made since, and only one wall remains of the ancient building. In September 2017, a team from St Peter's Brighton began a new phase in the life of St John's Crawley. St John's offer a variety of services, traditional and informal, and contemporary services.

Crawley is a town and borough in West Sussex, England. It is 28 miles (45 km) south of London, 18 miles (29 km) north of Brighton and Hove, and 32 miles (51 km) north-east of the county town of Chichester. Crawley covers an area of 17.36 square miles (44.96 km2) and had a population of 106,597 at the time of the 2011 Census.