John Monson, 2nd Baron Monson (23 July 1727 – 23 July 1774) was a British officeholder.
He was born on 23 July 1727, the eldest son of Sir John Monson, later Baron Monson, and his wife Margaret Watson, youngest daughter of Lewis Watson, 1st Earl of Rockingham. He was created LL.D. of Cambridge University in 1749.
On 5 November 1765, he was appointed warden and chief justice in eyre of the forests south of Trent. On the fall of the first Rockingham Ministry he was offered an earldom on the condition that he would relinquish the place ; he declined the proposal. He ultimately resigned with Portland and other whigs on 27 November; but is mentioned by Walpole as subsequently voting with the court on Bedford's motion that the privy council should take notice of the action of the Massachusetts assembly in pardoning the late insurrection.
In 1768, he signed a protest against the bill to limit the dividends of the East India Company. Monson died at his house in Albemarle Street on 23 July 1774.
He married, on 23 June 1752, Theodosia, daughter of John Maddison, esq., of Harpswell, Lincolnshire, by whom he had five sons and two daughters.
This article incorporates text from a publication now in the public domain: Norgate, Gerald le Grys (1894). "". In Lee, Sidney. Dictionary of National Biography. 38. London: Smith, Elder & Co.