Thomas Rees (13 December 1815 – 29 April 1885) was a Welsh Congregational minister, who wrote a history of nonconformism.
The son of Thomas Rees and his wife Hannah William, Rees was born at Pen Pontbren, Llanfynydd, Carmarthenshire, and brought up by his mother's family at Banc-y-fer, Llangathen, where he helped his grandfather, Dafydd William, a basket maker.
He took a job at a colliery at Llwydcoed, Aberdare, but fell ill and then set up a small school.
[1] Rees was ordained a minister on 15 September 1836 and then served as pastor at Craig-y-Bargoed (1836), Trecynon, Aberdare (1840), Llanelli (1842), Cendl (Beaufort), Breconshire/Mon.
1883) prepared the ground for a history of Welsh Independent churches, Hanes eglwysi Annibynol Cymru (1870 onwards), on the first four volumes of which he worked with John Thomas (1821–1892).