Eirug Wyn (11 December 1950 – 25 April 2004) was a Welsh satirical novelist who wrote in the Welsh language. He was born Eirug Price Wynne, He subsequently made his home in Y Groeslon in North Wales.
At the age of 17 he appeared in court accused of not placing an L-plate on the back of his car, as was required in the United Kingdom for anyone learning to drive. Instead, he had placed a similar plate bearing the letter "D", for ', the Welsh equivalent. The eventual outcome of this case was to make D-plates a legally recognised equivalent to L-plates throughout Wales. for novelists in 1994 and 2002. He also ran a bookshop, Siop y Pentan, in Caernarfon; wrote a column for the Western Mail; and edited Lol!, a satirical magazine.
He died of myeloma on 25 April 2004, at the age of 53.
- United!, Cyfres y Dolffin (Cwmni Iaith, 1996)
- Elvis: Diwrnod i'r Brenin (Y Lolfa, 1996)
- I Ble'r Aeth Haul y Bore? (Y Lolfa, 1997)
- Blodyn Tatws (Y Lolfa, 1998) – Cyfrol y Fedal Ryddiaeth 1998
- Hogia'r Milgi (Y Lolfa, 1999)
- Tri Mochyn Bach (Y Lolfa, 2000) – Cyfrol y Fedal Ryddiaeth 2000
- I Dir Neb (Y Lolfa, 2001)
- Bitsh! (Y Lolfa, 2002) – Gwobr Goffa Daniel Owen 2002
- Powdwr Rhech! (Y Lolfa, 2002)
- Y Dyn yn y Cefn heb Fwstásh (Y Lolfa, 2004) )