The Seaforth Highlanders was a line infantry regiment of the British Army, mainly associated with large areas of the northern Highlands of Scotland. The regiment existed from 1881 to 1961, and saw service in World War I and World War II, along with many smaller conflicts. In 1961 the regiment was amalgamated with the Queen's Own Cameron Highlanders to form the Queen's Own Highlanders, which merged, in 1994, with the Gordon Highlanders to form the Highlanders. This later joined the Royal Scots Borderers, the Black Watch, the Royal Highland Fusiliers and the Argyll and Sutherland Highlanders to create the present Royal Regiment of Scotland.

The Queen's Own Cameron Highlanders or 79th Regiment of Foot was a line infantry regiment of the British Army, raised in 1793. It amalgamated with the Seaforth Highlanders to form the Queen's Own Highlanders in 1961.