Baron Carnock, of Carnock in the County of Stirling, is a title in the Peerage of the United Kingdom. It was created in 1916 for the former Permanent Under-Secretary in the Foreign Office, Sir Arthur Nicolson, 11th Baronet.

Arthur Nicolson, 1st Baron Carnock,, known as Sir Arthur Nicolson, 11th Baronet, from 1899 to 1916, was a British diplomat and politician during the last quarter of the 19th century to the middle of World War I.