ISLIP, a parish in the hundred of HUXLOE, county of NORTHAMPTON, 1 mile (W, N. W.) from Thrapston, containing 551 inhabitants. The living is a rectory, in the archdeaconry of Northampton, and diocese of Peterborough, rated in the king's books at £ 15. 6. 8., and in the patronage of the Duke of Dorset. The church, dedicated to St. Nicholas, is a small but beautiful specimen of the later style of English architecture. There is a place of worship for Baptists.