| Harlaw Reservoir | |
|---|---|
| Location | City of Edinburgh Council area, Scotland |
| Lake type | reservoir |
| Basin countries | United Kingdom |
Harlaw Reservoir is a small reservoir in the City of Edinburgh Council area, Scotland, UK, situated in the Pentland Hills near Malleny Mills, Balerno and Edinburgh.
It was built between 1843 and 1848 in front of Threipmuir Reservoir by James Jardine for the Edinburgh Water Company.