| Westwater Reservoir | |
|---|---|
| West Water Reservoir dam | |
| Location | Pentland Hills, Scottish Borders |
| Lake type | reservoir |
| Basin countries | Scotland |
| Surface elevation | 320 m |
Westwater Reservoir is an artificial reservoir in the Pentland Hills, Scottish Borders, 3 km west of West Linton, and 26 km south west of Edinburgh. It forms part of the Lothian region water supply and is located 320 m above sea level.
Due to its popularity with Pink-footed Geese (Anser brachyrhynchus) it has been designated as a Special Protection Area and a Ramsar site.