Coordinates: 52°21′00″N 0°01′01″E / 52.35°N 0.017°E / 52.35; 0.017
Bluntisham is a village and civil parish in Cambridgeshire, England. Bluntisham lies approximately 8 miles (13 km) east of Huntingdon. Bluntisham is situated within Huntingdonshire which is a non-metropolitan district of Cambridgeshire as well as being a historic county of England. The villages of Earith, Colne, Woodhurst, and Somersham are all close by.
The prime meridian passes through the western edge of Bluntisham.
The village was known as Bluntersham between the 10th and 13th centuries, Blondesham in the 14th century, and Bluntysham, Bluntsome and Blunsham in the 16th century. Due to the close proximity of Bluntisham and Earith, the two formed the parish of Bluntisham-cum-Earith, with the parish church in Bluntisham and a chapelry in Earith. However, the civil parish of Bluntisham-cum-Earith was dissolved in 1948 when the two were separated.