Robert John Carrington, 2nd Baron Carrington,, was a politician and a baron in the Peerage of Great Britain. He was the son of Robert Smith, 1st Baron Carrington, and Anne Boldero-Barnard. He adopted the name "Carrington" in 1839.

Robert Smith, 1st Baron Carrington, was a British banker, slave owner and politician who sat in the House of Commons from 1779 to 1797 when he was raised to the peerage.