The 76th Regiment of Foot (MacDonald's Highlanders), sometimes referred to as 'MacDonnell's Highlanders' after its colonel, John MacDonnell of Lochgarry, was a Scottish Light Infantry regiment raised in the west of Scotland and western isles of Scotland in 1777.

In March 1779 it moved to Perth where, following a dispute over their pay and bounty payment, soldiers from the regiment took part in the Burntisland mutiny of March 1779, whilst under the command of Major John Sinclair, 11th Earl of Caithness (Lord Berridale), after which it was transferred to Jersey in the Channel Islands and embarked for New York in August 1779.

Sinclair, the Earl of Caithness was himself badly wounded during the Siege of Charleston, which took place from March to May 1780, where American and French forces were defeated.

[4] The regiment campaigned from March 1781, under the command of Major Francis Needham, 1st Earl of Kilmorey (who was also the regimental Colonel of the 86th Foot) in the American Revolutionary War and fought at the Battle of Black Swamp in June 1781,[5] and the Battle of Green Spring in July 1781 where they defeated the French Gilbert du Motier, Marquis de Lafayette.

Following the end of the war, in 1783, it returned to Scotland and was commanded by Sir Robert Stuart.