| Static Image Name: | File:House on Knatts Valley Road - geograph.org.uk - 1267390.jpg |
| Static Image Caption: | House on Knatts Valley Road |
| Country: | England |
| Map Alt: | Knatts Valley is in north west Kent |
| Coordinates: | 51.3333°N 0.2481°W |
| Civil Parish: | West Kingsdown |
| Shire District: | Sevenoaks |
| Shire County: | Kent |
| Region: | South East England |
| Constituency Westminster: | Sevenoaks |
| Post Town: | Sevenoaks |
| Postcode District: | TN15 |
| Postcode Area: | TN |
Knatts Valley is a hamlet in the civil parish of West Kingsdown, in the Sevenoaks district, in the county of Kent, England.
It was originally a rural community consisting mainly of several smallholdings: the principal farms being Knatts Farm (sheep), giving its name to the area; and Maplescombe Farm (cattle). One settlement in the valley is Romney Street; the word street meaning hamlet in these parts of Kent.To the east there is a development of housing within a wooded area, mainly of detached housing, and to the west is a similar development — "East Hill". There is a golf course and a residential caravan park. Here is also an unlicensed airstrip, being part of Romney Street Farm, with a north–south grass runway east of Upper Wood.