Gerard Langbaine, the elder (1609 – 10 February 1658) was an English academic and clergyman, known as a scholar, royalist, and Provost of Queen's College, Oxford during the siege of the city.
He was the son of William Langbaine, born at Barton, Westmoreland, and was educated at the free school at Blencow, Cumberland. He entered Queen's College, Oxford, as 'bateller' 17 April 1625, and was elected 'in munus servientis ad mensam' 17 June 1626. He did not matriculate in the university till 21 November 1628, when he was nineteen years old. He was chosen 'taberdar' of his college 10 June 1630; graduated B.A. 24 July 1630, M.A. 1633, D.D. 1646, and was elected fellow of his college in 1633.
He was vicar of Crosthwaite in the diocese of Carlisle, 15 January 1643, but resided in Oxford. In 1644 he was elected Keeper of the Archives of the university, and on 11 March 1646 was chosen Provost of Queen's College. The city of Oxford was invested at the time by the parliamentary forces, so that the ordinary form of confirmation to the provostship by the archbishop of York was set aside, and Langbaine's election was confirmed with special permission of the king by the bishop of Oxford, and Dr. Steward, John Fell, and Dr. Duche (6 April 1646).
In 1642 he acted as a member of the delegacy, nicknamed by the undergraduates 'the council of war,' which provided for the safety of the city and for Sir John Byron's royalist troops while stationed there. In May 1647 he was a member of the committee to determine the attitude of the university to the threatened parliamentary visitation; he advocated resistance. In November 1647 he carried some of the university's archives to London, and sought permission for counsel to appear on the university's behalf before the London committee of visitors. His efforts produced little result, and on 6 June 1648, shortly after the parliamentary visitors had arrived in Oxford, Langbaine was summoned to appear before them; but the chief visitor, Philip Herbert, 4th Earl of Pembroke, treated him leniently, and he retained his provostship. In January 1649 permission was effectively granted to Langbaine to exercise privileges as provost of Queen's. Next month he joined a sub-delegacy which sought once again to induce the visitors to withdraw their pretensions to direct the internal affairs of the colleges, but the visitors ignored the plea, and appointed a tabarder in 1650 and a fellow in 1651 in Langbaine's college. In April 1652 the committee in London formally restored to him full control of his college. Langbaine died at Oxford 10 February 1658, and was buried in the chapel of Queen's College.