John Mitchinson (23 September 1833 – 25 September 1918) was a British teacher and Anglican priest who was Bishop of Barbados and later served as Master of Pembroke College, Oxford.
He was born in Durham on 23 September 1833 and educated at Durham School and Pembroke College, Oxford. He was an Assistant Master at Merchant Taylors’ then Headmaster of the King's School, Canterbury from 1859 to 1873. Ordained in 1860 he became Bishop of Barbados in 1873, holding the post for 8 years, but becoming known as Bishop of Barbados and the Windward Islands from 1877, when he created the separate Diocese of the Windward Islands but remained as bishop over that diocese too. From 1891 to 1899 he was Rector of Sibstone, then Archdeacon of Leicester, 1886–99. In that year he returned to his former college where he remained until his death on 25 September 1918. He had become a Doctor of Divinity (DD).