Elidir Sais

Elidir Sais (ca. 1190 – ca. 1240) was a Medieval Welsh language court poet from Anglesey His sobriquet Sais ("English") suggests he was conversant in the English language, something so unusual at the time that it earned him his nickname. It may indicate he had been forced to spend some year in exile in England.

The few surviving works by Elidir are mostly religious poems on the Holy Trinity, eligies on the death of several Welsh princes and a poem remonstrating Llywelyn ab Iorwerth, King of Gwynedd, whose aggressive policies he opposed.