| Loch Duntelchaig | |
| Location: | Inverness-shire, Scottish Highlands, Scotland |
| Coordinates: | 57.35°N -4.299°W |
| Type: | loch |
| Pushpin Map: | Scotland |
| Pushpin Map Alt: | Location of the loch in Scotland. |
Loch Duntelchaig (from the Scottish Gaelic Loch Dun Seilcheig) is a freshwater loch in the traditional county of Inverness-shire in the Scottish Highlands. It extends from the southwest to its outflow in the northeast and measures up to at its widest. The loch drains via Loch a Chlachain into the River Nairn. Loch Duntelchaig is over deep towards its south end.[1] It is also the main reservoir for Inverness sitting less than a kilometre from the secondary reservoir Loch Ashie.