Eurig Wyn (born 1944) is a Welsh politician. He was a Plaid Cymru Member of the European Parliament for Wales from 1999 to 2004, when he lost his seat in part due to a reduction of the number of seats that Wales had.
He had previously been a journalist for the BBC. During 2005, Eurig Wyn was selected as Plaid Cymru's parliamentary candidate for the Ynys Môn constituency. Prior to his selection, Eurig Wyn had spent about a year building up a profile in Ynys Môn with a view to eventually taking the seat back from the Labour Party (UK), following Plaid Cymru's loss in 2001. The seat was the party's key target seat in the 2005 General Election; however, Plaid had their proportion of the vote reduced and the Labour Party held on to it, all main parties saw their vote fall due to independent candidate, Peter Rogers, who came 3rd and took a large share of the vote.