Sir Thomas Herbert Parry-Williams (1887 - 1975) was a Welsh poet, author and academic. Parry-Williams was born at Rhyd-ddu, Caernarfonshire. He was educated at the University College of Wales, Aberystwyth, the University of Oxford, the University of Freiburg and the Sorbonne. As a poet, he was the first to win the double of Chair and Crown at the National Eisteddfod of Wales, which he achieved at Wrexham in 1912 and repeated at Bangor in 1915.