Matthew Robinson, 2nd Baron Rokeby (Baptised, York 12 April 1713 – 30 November 1800), FRS, was an English landowner, politician and nobleman. In later life he was considered an eccentric.
Lord Rokeby was born Matthew Robinson in a large family from Yorkshire. His parents were Matthew Robinson (1694–1778) of Edgely and West Layton, Yorkshire, and Elizabeth, daughter of Robert Drake of Cambridge; his sisters included the novelists Elizabeth Montagu and Sarah Scott. Of his six brothers, Thomas the second was known as a legal writer, William the fifth as a cleric, and the youngest, Charles, as a Member of Parliament. His father inherited property in the neighbourhood of Rokeby from his great-uncle Matthew Robinson, rector of Burneston; and his mother inherited estates at Monks Horton, near Hythe, Kent, from her brother Morris Drake Morris, which Rokeby in turn succeeded to in 1746.
Robinson was admitted to Lincoln's Inn in 1730, and to Trinity Hall, Cambridge in 1731. He became a Fellow there in 1734. In November 1746 he became a Fellow of the Royal Society, and in the same year his mother died: he was heir to her Monks Horton property. As a consequence, he then assumed the additional name of Morris.
The Royal Society citation reads: Mathew Robinson Esqr, A Gentleman well versed in Philosophical Learning, and polite Literature; being desirous of becoming a fellow of this Society, We on our personal knowledge do recommend him as every way qualified and likely to become a usefull Member of our Body. His proposers were Edw Montagu (brother-in-law); Daniel Wray; Geo Lewis Scott (brother-in-law); Henry Baker; Robt Smith; M Folkes.