Flitton (Flichtam, Fllite, Flute) is a small village in Bedfordshire, England which forms part of the parish of Flitton and Greenfield. The village derives its name from river Flit which flows close by it. It is notable primarily as the home of the De Grey Mausoleum adjacent to St John the Baptist church. Richard Milward, the editor of Selden's Table Talk was born at Flitton in 1609. There are two pubs, The White Hart by the church hall and Jolly Coopers at Wardhedges. The annual ‘Gala’ and ‘Potato Race’ are two of the main events that happen in the village.

The village was struck by an F1/T2 tornado on 23 November 1981, as part of the record-breaking nationwide tornado outbreak on that day.

The church, which stands on a slight mound on the west side of the village, was probably built by Edmund Grey, Earl of Kent (1465), between 1440 and 1489. It has a 27-foot (8.2 m) chancel, nave 39 feet (12 m) long with aisles, south porch and west three-stage tower with a projecting rood stair turret; the whole appears to be one built in local ironstone, embattled. On the walls of the north aisle are three fragmentary brasses commemorating: Eleanor Conquest (1434), Elizabeth, wife of Thomas Waren (1544) and Alice, wife of Reginald Hill (1594).

There are six bells, (five dated 1902 and one 1904) by Bowell of Ipswich; they replaced five of 1687 by Richard Chandler of Drayton Parslow.

The natural philosopher and meteorologist George Hadley (1685-1768) is buried in the chancel.

The de Grey Mausoleum in the village is one of the largest sepulchral chapels in the country. It is a Grade I listed building. The Mausoleum contains over twenty monuments to the de Grey family who lived in nearby Wrest Park.

The cruciform Mausoleum has its nave set against the north side of the chancel of the adjacent church of St John the Baptist and its south transept overlaps the east end. The oldest part of Mausoleum was built circa 1614, the eastern parts were added in 1705. The architect Edward Shepherd worked on the building during 1739-40.

It is in the guardianship of English Heritage and is open to the public.