Greenway Estate
| Greenway House | |
|---|---|
| Type | House | 
| Location | Galmpton, Devon | 
| Coordinates | 50°22′55″N 3°35′16″W / 50.381836°N 3.587771°W | 
| Built | c. 1780 | 
| Architectural style(s) | Georgian | 
| Governing body | National Trust | 
| 
Listed Building – Grade II* | |
| Official name | Greenway House | 
| Designated | 21 May 1985 | 
| Reference no. | 1108548 | 
| Official name | Greenway | 
| Type | Grade II | 
| Designated | 3 March 2004 | 
| Reference no. | 1001686 | 
Greenway, also known as Greenway House, is an estate on the River Dart near Galmpton in Devon, England. Once the home of the author Agatha Christie, it is now owned by the National Trust.
The estate was served by the Dartmouth Steam Railway, with trains from Paignton and Kingswear stopping at Greenway Halt station. However, since March 2020, no services have stopped here.