| Knaresborough Castle | |
|---|---|
| Knaresborough, North Yorkshire, England | |
 The ruins of the keep of Knaresborough Castle. | |
.svg)  Knaresborough Castle | |
| Coordinates | 54°00′26″N 1°28′10″W / 54.00719°N 1.46932°W |
| Type | Castle |
| Site information | |
| Owner | Duchy of Lancaster |
| Controlled by | North Yorkshire Council |
| Open to the public | Yes |
| Condition | Ruined |
| Site history | |
| Built | Around 1100, rebuilt 1301–1307 |
| In use | Until 1648 |
Knaresborough Castle is a ruined fortress overlooking the River Nidd in the town of Knaresborough, North Yorkshire, England.