Professor Thomas Gwynn Jones C.B.E. (10 October 1871 – 7 March 1949), more widely known as T. Gwynn Jones, was a leading Welsh poet, scholar, literary critic, novelist, translator, and journalist who did important work in Welsh literature, Welsh education, and the study of Welsh folk tales in the first half of the twentieth century. He was also an accomplished translator into Welsh of works from English, German, Greek, and Irish.