| Country: | England |
| Static Image: | St Andrew's Church, Cavenham.jpg |
| Static Image Width: | 240px |
| Static Image Caption: | St Andrew's Church, Cavenham |
| Coordinates: | 52.2968°N 0.5839°W |
| Official Name: | Cavenham |
| Population: | 136 |
| Population Ref: | (2011 census) |
| Shire District: | West Suffolk |
| Shire County: | Suffolk |
| Region: | East of England |
| Constituency Westminster: | West Suffolk |
| Post Town: | Bury St Edmonds |
| Postcode District: | IP28 |
| Postcode Area: | IP |
| Os Grid Reference: | TL7669 |
Cavenham is a village and civil parish in Suffolk, England, 10km (10miles) northwest of Bury St Edmunds. It is in the local government district of West Suffolk, and the electoral ward of Manor.[1] At the 2021 UK census, Cavenham Parish had a population of 141.[2] In the 1870s it had a population of 229.[3]
The parish includes Cavenham Heath, a Site of Special Scientific Interest (SSSI) with a sand and gravel quarry close to it[4] and is the location of the Black Ditches, an Anglo-Saxon boundary ditch which is believed to be the most easterly of a series of early Anglo-Saxon defensive earthworks built across the Icknield Way. Part of this also forms an SSSI to the south-east of the village.
Toponymists Keith Briggs and Kelly Kilpatrick say Cavenham means a man called Cafa once owned a homestead here. They provide a number of different spellings following Domesday Book before it became stabilised as Cavenham. They also say Cafan has the genitive suffix meaning 'of Cafa'.[5] The surname of canham originates from the name cavenham, all persons with the surname canham have their origins here at Cavenham