Pilgrim Hospital is a hospital in the east of Lincolnshire on the A16, north of the town of Boston near the mini-roundabout with the A52. It is situated virtually on the Greenwich Meridian and adjacent to Boston High School. The fenland area of Lincolnshire is covered by this hospital, being the county's second largest hospital after Lincoln County Hospital. It is managed by United Lincolnshire Hospitals NHS Trust.

Boston is a market town and inland port in the borough of the same name in the county of Lincolnshire, England.