The Iveragh Peninsula (Irish: Uíbh Ráthach) is located in County Kerry in Ireland. It is the largest peninsula in southwestern Ireland. A mountain range, the MacGillycuddy's Reeks, lies in the centre of the peninsula. Carrauntoohil, its highest mountain, is also the highest peak in Ireland.
Valentia Island lies off the northwestern tip of the peninsula. It is connected with the peninsula by a bridge at Portmagee village, but it can also be reached by ferry crossing between Renard Point on the mainland and Knightstown on the island.
The Skellig Islands lie about 12 kilometres (7.5 statute miles or 6.4 nautical miles) off the west coast and are known for their monastic buildings and bird life.
Kerry Geopark is a community initiative on the Iveragh Peninsula which aims to promote geotourism in this area of high geological importance. Some of the interest features are Kenmare Bay (a drowned river valley or ria), signs of past glaciation and volcanic activity and 400-million-year-old fossilised tetrapod tracks.
Loher Cashel, a stone ringfort (caiseal) is located at the western edge of Iveragh.