Robert Williams Parry (6 March 1884 – 4 January 1956) was one of Wales's most notable 20th-century poets writing in Welsh.

He returned to college at Bangor and spent some months in Brittany working towards an MA degree, which he was awarded in 1912 for a dissertation on points of contact between Welsh and Breton, subsequently resuming his teaching work at Cefnddwysarn, then at Barry county school, and was appointed English master at Cardiff High School for Boys in 1916.

Parry served in the army from 1916 to 1918, returning on demobilization to Cardiff, and in 1921 was appointed headmaster of Oakley Park School in Montgomeryshire.

He left early in 1922 having been appointed a lecturer in the Welsh and Extra-Mural Studies Departments at the university college in Bangor, where he remained until his retirement in 1944.

In the latter he uses the traditional four-line verse or englyn and cynghanedd to lament the death of the poet Hedd Wyn (Ellis Humphrey Evans) at the Battle of Passchendaele in 1917.