These are lists of long-distance trails in Ireland, and include recognised and maintained walking trails, pilgrim trails, cycling greenways, boardwalk-mountain trails, and interconnected national and international trail systems. In 2017, the 46-kilometre Waterford Greenway was opened for cyclists, and many others are planned or in development. Many of the National Waymarked Trails form part of larger long-distance and transnational trails such as European walking route E8, the Beara-Breifne Way and the International Appalachian Trail.