Brynley Francis Roberts CBE FLSW (born 1931), known as Bryn Roberts, is a Welsh scholar and critic, who has written much on the Welsh language and Celtic history. He was Professor of Welsh Language and Literature at the University of Wales, Swansea 1978–1985 and Librarian of the National Library of Wales in 1985–1994, then made editor of the Dictionary of Welsh Biography in 1987 and of Y Traethodydd in 1999. He is on the council of the Honourable Society of Cymmrodorion and involved in the Morfa Chapel, Aberystwyth, part of the Presbyterian Church of Wales.