| Helensburgh No. 2 Reservoir | |
| Pushpin Map: | Scotland Argyll and Bute |
| Location: | Helensburgh, Scotland |
| Coords: | 56.0219°N -4.721°W |
| Type: | Reservoir |
| Basin Countries: | Scotland, United Kingdom |
| Area: | 53707m2 |
| Volume: | 229000m2 |
| Elevation: | 113m (371feet) |
The reservoir is of the non-impounding variety. It is no longer part of the local water supply system and is used by Helensburgh Angling Club. The earthen dam is 9 metres high and records show it was constructed before 1875.