Richard William Jelf (January 25, 1798 – September 19, 1871) was the fourth Principal of King's College, London.
He was educated at Eton College and Christ Church, Oxford, and was subsequently made a Fellow of Oriel College, Oxford. He served as canon of Christ Church, Oxford, and Principal of King's College, London, from 1844 to 1868.
He was the second son of Sir James Jelf, of Gloucester, and brother of William Edward Jelf. He was educated at Eton, where he began a lifelong friendship with Edward Bouverie Pusey, and in December 1816 matriculated at Christ Church, Oxford, where he graduated B.A. (with a second class in classics) in 1820, and M.A. in 1823, B.D. 1831, D.D. 1839.
In 1820 he was elected fellow of Oriel College, took holy orders in 1821, and became one of the tutors in 1823 after receiving his M.A. Jelf became was master of the schools in 1824, and classical examiner in 1825.
After being for a short time private tutor to Sir George Nugent, Jelf was in 1826 appointed preceptor to Prince George of Cumberland. This post he filled for thirteen years, residing much at Berlin before his pupil's father became king of Hanover (in 1837). In 1830 he was appointed canon of Christ Church, as well as married. Jelf never was prominent Tractarian, but both John Henry Newman and his friend Pusey addressed to him their letters on the interpretation of the Thirty-nine Articles, advocated in Tract 90 of the Tracts for the Times, in 1841. In 1842 he preached a sermon before the university, published as Via Media; or the Church of England our providential path between Romanism and Dissent. In 1847 he was appointed one of the six doctors to examine and report on Pusey's sermon, with the result that Pusey was suspended from preaching for two years.