Colonel Sir Ronald Thomas Stewart Macpherson CBE, MC & Two Bars, TD, DL (4 October 1920 – 6 November 2014) was a highly decorated Scottish British Army officer during and after the Second World War. He fought with the No. 11 Commando unit and French Resistance forces, becoming infamous among Axis forces as the "Kilted Killer". Having caused so much damage to military infrastructure, a bounty of 300,000 francs was placed upon his head. He was awarded the Military Cross and the Croix de Guerre three times, and the Légion d'honneur.
Macpherson was born in Edinburgh, Scotland. He was youngest of seven children of Sir Thomas Stewart Macpherson CIE LLD and Helen, the daughter of the Reverend Archibald Borland Cameron. His father’s brother was the first Baron Strathcarron and one of his own brothers, Niall, was also raised to the peerage as Baron Drumalbyn. Another brother was George Macpherson, one of Scotland's greatest ever rugby players. His family originates from Newtonmore, in the Highlands, yet he was raised in the city.
His childhood home was Edgebrooke, in East Fettes Avenue, and he attended Edinburgh Academy prep school before Cargilfield, in Barnton. At 14, he went to Fettes College, where he joined the Officers' Training Corps. He also attended Trinity College, Oxford, where he was awarded a first class degree in Philosophy, Politics and Economics. He represented Oxford at rugby, hockey and athletics and was also an international student athlete, representing the UK in the 1500 Meters at the 1947 Universiade, the precursor of the World Student Games.