Founded in 1859 as part of the Volunteer Force sponsored by The Highland Society of London and The Caledonian Society of London, a group of individual Scots raised The London Scottish Rifle Volunteers under the command of Lt Col Lord Elcho, later The Earl of Wemyss and March. Over many years the London Scottish have changed titles and lineage, today they are A (London Scottish) Company of The London Regiment.
The regimental tartan is Elcho tartan and Hodden Grey in colour.Lt Col Lord Elcho clothed the regiment in Hodden Grey, the homespun cloth known throughout Scotland. This avoided all interclan feeling on the subject of tartan and, as Lord Elcho said "A soldier is a man hunter. As a deer stalker chooses the least visible of colours, so ought a soldier to be clad."