Earl Manvers was a title in the Peerage of the United Kingdom. It was created in 1806 for Charles Medows Pierrepont, 1st Viscount Newark. He had already been created Baron Pierrepont, of Holme Pierrepont in the County of Nottingham, and Viscount Newark, of Newark-on-Trent in the County of Nottingham, in 1796. Both these titles were in the Peerage of Great Britain.