The 42nd (Royal Highland) Regiment of Foot was a Scottish infantry regiment in the British Army also known as the Black Watch. Originally the 43rd Highlanders they were renumbered to the 42nd in 1748 on the disbanding of the existing Oglethorpe's 42nd Regiment of Foot allowing the regiment to assume that number as its own. In 2006 the Black Watch became part of the Royal Regiment of Scotland.