an Irish theologian, was educated at Trinity College, Dublin, became chaplain to Dr. Michael Boyle, afterwards archbishop of Dublin, and at length dean of Perry. In the reign of James II he embraced the popish religion, in vindication of which he wrote several books; then removed to France, thence to England, and died at London in 1697. Manby published several controversial tracts in favor of the Roman Catholic religion. — Hook, Eccles. Biog. 7:214, s.v.