Daniel Cosgrove Waterland (14 February 1683 – 23 December 1740) was an English theologian. He became Master of Magdalene College, Cambridge in 1714, Chancellor of the Diocese of York in 1722, and Archdeacon of Middlesex in 1730.
Waterland opposed the latitudinarians of his time. He was an acute controversialist on behalf of the orthodox doctrine of the Trinity, on which he wrote several treatises. He was also the author of a History of the Athanasian Creed (1724).
The second son of Henry Waterland, rector of Walesby and Flixborough, Lincolnshire, by his second wife, he was born at Walesby on 14 Feb 1682–3. He was educated at the free school in Lincoln. At Magdalene College, Cambridge, he was admitted on 30 March 1699 and elected scholar on 26 December 1702; and became a fellow on 13 February 1703–4. He graduated B.A. in 1703 and B.D. in 1714, and proceeded M.A. in 1706 and D.D. in 1717. On 8 May 1724 he was incorporated at Oxford.
Waterland was conscientous, and devoted to tutorial work and university business. He was examiner in arts in 1710 and in the philosophical schools in 1711. In February 1713 he was appointed by the visitor, Lord Suffolk and Bindon, to the mastership of his college, vacant by the death of Gabriel Quadring, and presented to the rectory of Ellingham, Norfolk. At the public commencement in 1714 he held a disputation with Thomas Sherlock on the question of Arian subscription. On 14 November 1715 he succeeded Sherlock as vice-chancellor of the university. In 1716 he preached the sermon on occasion of the university's public thanksgiving (7 June) for the suppression of the Jacobite Rising of 1715, and on 22 October presented to the Prince of Wales at Hampton Court an address of congratulation.