Fiddown (Irish: Fiodh Dúin) is a small village in Kilkenny, Ireland. It is located in the south of the county just off the N24 road, 58 kilometres from Kilkenny city. The village is on the banks of the River Suir, near the border with Waterford. The village name is said to be derived from Fiodh, "a wood" and Doon, a "fort" or "rath".