Nathaniel Foy, D.D. (1648 – 31 December 1707), was a bishop of Waterford and Lismore who belonged to a new generation of reformers of the established church along with William King and Narcissus Marsh. He had defended the established church during the reign of James II when most bishops had fled the country. He died in Dublin on 31 December 1707, and was buried at the west end of Waterford Cathedral, in St. Saviour's Chapel.