Grantchester (UK: /ˈɡrɑːntʃɪstər/) is a village and civil parish on the River Cam or Granta in South Cambridgeshire, England.

[1] Before, it is also mentioned briefly in book IV, chapter 19 of Bede's Ecclesiastical History of the English People.

John de Grauntsete, a lawyer who had a successful career as a judge in Ireland, was born in Grantchester, c. 1270, and took his surname from his birthplace.

Grantchester is sometimes identified as the Cair Grauth[2] ("Fort Granta") listed in the History of the Britons among the 28 cities of Britain,[3] but the Roman Duroliponte and subsequent major British and Saxon settlements in the area were at Castle Hill in Cambridge, whose Old English name was Grantabrycge.

Grantchester is said to have the world's highest concentration of Nobel Prize winners, most of these presumably being current or retired academics from the nearby University of Cambridge.

[5] Lodgers at Orchard House included the Edwardian poet Rupert Brooke, who later moved next door to the Old Vicarage.

[17] Every year on Boxing Day (26 December), Grantchester holds an inter-village barrel race which is around 40 minutes long and ends with a hog roast at the Rupert Brooke pub.