Robat Arwyn (born November 1959) is a musical composer from Ruthin, North Wales, best known for his many Welsh-language songs. His notable compositions include the songs "Anfonaf Angel" and "Benedictus".
Arwyn was born in Talysarn, in the Nantlle valley, under the name Robert Arwyn Jones, and studied Music at Cardiff University before qualifying as a librarian. Arwyn's rock opera, Ceidwad y Gannwyll, with libretto by Robin Llwyd ab Owain, was performed at the National Eisteddfod at Rhyl in 1985.
His composition, "Atgof o'r Sêr" (2001), was commissioned for the Denbighshire National Eisteddfod, where it was performed by Bryn Terfel, Fflur Wyn and Côr Rhuthun. "Anfonaf Angel", which he wrote in 2008 with Hywel Gwynfryn, has since been recorded by many artists, including Ffion Hâf, Trio, Elgan Llyr Thomas, Rhys Meirion, Piantel and the London Welsh Male Voice Choir. It was recorded in 2011 by Bryn Terfel in order to raise funds for the Welsh Air Ambulance Service.
- "Various artists - Caneuon Robat Arwyn". Sain Records. Retrieved 2 February 2019.
- Chartered Institute of Library and Information Professionals; Chartered Institute of Library and Information Professionals (Great Britain); Facet Publishing (2004). Libraries and Information Services in the United Kingdom and the Republic of Ireland. Facet Publishing.
- James Mannheim. "Atgof o'r Sêr". Allmusic. Retrieved 2 February 2019.
- "Bryn: My new song to help the air ambulance". WalesOnline. 21 May 2011. Retrieved 2 February 2019.