John Arthur Wynne PC (20 April 1801 – 19 June 1865) was an Irish landowner and politician. He was the eldest surviving son of Owen Wynne (1755–1841) of Hazelwood House, Sligo, Ireland and educated at Winchester School (1816-1819) and Christ Church, Oxford (1820). He succeeded his father in 1841, inheriting the family seat of Hazelwood House, Sligo, and was appointed High Sheriff of Sligo for 1840–41.