John Edwards (who used the pseudonym Siôn Treredyn) (1605/6 – December 1656) was a Welsh Anglican priest and translator.
Edwards was born in Caldicot, Monmouthshire in 1605 or 1606 and matriculated at Jesus College, Oxford in 1624 aged eighteen.
Four years later, he moved to the parish of Tredunnock, Monmouthshire, and this was the basis of his pseudonym "Siôn Treredyn".
His aim was to encourage books to be produced in Welsh, and he noted with regret in the preface that Welshmen moving to England would learn English, but few English clergymen and scholars moving to Wales would learn Welsh.
His own translation had various grammatical errors, reflecting the poor state of Welsh in Monmouthshire at that time.