Rathmell Academy was a Dissenting academy set up at Rathmell, North Yorkshire, and was the oldest non-conformist seat of learning in the north of England. The academy was established in 1670 by Richard Frankland M.A. (Christ's College,Cambridge), 1670 and which was carried on, in spite of much persecution and many changes on venue of the academy, for nearly 30 years.
Efforts were being made by the nonconformists of the north to secure the educational advantages offered for a short time by the Durham College. William Pell, who had been a fellow of Magdalene College, Cambridge, and a tutor at Durham, declined to start an academic institution, holding himself precluded by his graduation oath from resuming collegiate lectures outside the ancient universities. Application was then successfully made to Frankland, who was not hindered by the same scruple. Nonconformist tutors usually understood the oath as referring to prelections in order to a degree.
Early in March 1669 Frankland began to receive students at Rathmell. His first student was George, youngest son of Sir Thomas Liddell, bart., of Ravensworth Castle, Durham, head of a family distinguished for its loyalty, though marked by puritan leanings. Some of Frankland's students were intended for the legal, others for the medical profession; his first divinity students belonged to the independent denomination. It was not till the Royal Declaration of Indulgence of 1672, from which Edward Stillingfleet dates the presbyterian separation, that divinity students connected with that body were sent to Rathmell, and the earliest nonconformist ‘academy’ (as distinct from a mere school) became an important institution and the model of others. In the first four years he received 15 pupils, six of whom became nonconformist ministers.