Gwion Hallam is a Welsh writer and television presenter from Ammanford (Welsh: Rhydaman), Carmarthenshire.
He now lives with his family in Y Felinheli, North Wales.
His brother, Tudur Hallam, won the Chair at the National Eisteddfod in 2010.His book, Creadyn, won the 2006 Best Welsh-Language Book (Secondary Sector) in the Tir na n-Og awards.
In 2017, he won the Crown at the National Eisteddfod of Wales.He regularly presents the hymn-singing programme Dechrau Canu, Dechrau Canmol on S4C.