Sir Matthew White Ridley, 4th Baronet (9 September 1807 – 25 September 1877) was a Conservative Party politician in the United Kingdom.
He was appointed High Sheriff of Northumberland for 1841 and then served as member of parliament (MP) for Northumberland North from 1859 to 1868.
He inherited the baronetcy on the death in 1836 of his father Matthew, and was in turn succeeded by his son Matthew, who was later ennobled as Viscount Ridley.