Goronwy Owen Goronwy-Roberts, Baron Goronwy-Roberts, PC (20 September 1913 – 23 July 1981) was a Labour Member of Parliament.
Roberts was the younger son of Edward and Amelia Roberts from Bethesda, Gwynedd, where his father was a deacon of the Presbyterian Church of Wales. He was educated at Ogwen Grammar School, Bethesda and the University College of North Wales, Bangor. Later he attended the University of London and was appointed a Fellow of the University of Wales in 1938. While at Bangor, Roberts, together with Harri Gwynn was one of the founders of Mudiad Gwerin, a nationalist left-wing pressure group.
Roberts served in the army in 1940-41 and in the army reserve until 1944. From 1941 until 1944 he worked as Youth Education Officer for Caernarfonshire and in 1944 was appointed lecturer in youth leadership at the University College of Swansea.
Goronwy Roberts was elected Labour MP for Caernarvonshire in 1945, when he defeated the sitting Liberal MP Goronwy Owen, who had held the seat since 1923. Following boundary changes, he was elected to represent Caernarvon at the 1950 General Election, defeating the Liberal candidate by over 10,000 votes. He continued to represent the constituency until February 1974, when he lost his seat to Dafydd Wigley of Plaid Cymru. Since then, no Labour candidate has won the seat.
During the 1950s, Roberts was, together with Cledwyn Hughes and others, a stalwart of the Parliament for Wales campaign. In 1951, Plaid Cymru announced that the party would not oppose him at the General Election due to his support for the campaign. Eventually, he presented the final petition to Parliament, bearing more than 250,000 signatures, in May 1956.