Loch a' Ghobhainn is an upland freshwater loch lying inland and south west of the village of Shieldaig in the Scottish Highlands. The loch has an irregular, somewhat elliptical shape with a perimeter of . It is approximately long, has an average depth of and is at its deepest. The loch was surveyed on 8 August 1902 by T.N. Johnston and John Hewitt and later charted as part of Sir John Murray's Bathymetrical Survey of Fresh-Water Lochs of Scotland 1897-1909.