The Skirmish of Loch nan Uamh was a conflict that took place on 2 May 1746 and was part of the Jacobite rising of 1745.

Following the Jacobite defeat at the Battle of Culloden on 16 April 1746, two French privateer ships from Nantes (south of Brittany), Le Le Mars and La La Bellone arrived at Loch nan Uamh and anchored there on 30 April 1746.

[2][1] Le Mars was reluctant to unload her supplies (the Loch Arkaig treasure) as the British Navy was approaching and she took on board some escaping Jacobites including James Drummond, 3rd Duke of Perth and Sir Thomas Sheridan.

[2] This allowed the Royal Navy's HMS Greyhound to give Le Mars a broadside at close quarters which caused great loss of life:[2] Nearly a score of privateers were killed and according to eyewitnesses her decks were awash with blood.

[2] Hundreds of spectators came to the shore to watch the battle, whom HMS Greyhound fired upon to try and stop them carrying away the gold and cargo that had been unloaded by the Breton ships.