The title of Lord Ross was a Lordship of Parliament in the Peerage of Scotland. It was created in 1499 for Sir John Ross, of Halkhead.
The second Lord died at the Battle of Flodden. The 12th Lord was appointed Lord Lieutenant of Renfrew in 1715. He also inherited Balnagown from David Ross of Balnagown in 1732, and thus became Chief of Clan Ross, though the Rosses of Halkhead were not descended from the ancient Earls of Ross. The title became extinct or dormant on the death of the 14th Lord, 19 August 1754.
Elizabeth, daughter of the 13th Lord, married John Boyle, 3rd Earl of Glasgow. In 1815 their son George Boyle, 4th Earl of Glasgow was created Baron Ross, of Hawkhead, in the Peerage of the United Kingdom, which title became extinct in 1890 on the death of his son George Boyle, 6th Earl of Glasgow. Grizel, another daughter of the 13th Lord, married Sir James Lockhart, 2nd Baronet of Carstairs, and their descendants succeeded to Balnagown and as Chiefs of Clan Ross, adopting the name Lockhart-Ross.
