NEVIN, or NEFN, a town of Wales, Carnarvonshire, on the shore of Carnarvon Bay, 20 miles S.S.W. of the town of Carnarvon. The town is ill built. It has a parish church, several chapels, and a number of schools. Some trade is carried on by steam navigation with Liverpool in agricultural produce. Edward I. held a festival and tournament here, soon after his conquest of Wales; and the position of the lists can still be traced. Pop. (1851) 1854.