Salt Island (Welsh: Ynys Halen) is an island joined to Holy Island, Anglesey, itself an island joined toAnglesey in North Wales.
It is part of the port of Holyhead and almost the whole extent of the island is used as a passenger, car and freight terminal and berths for ferries to and from Ireland. Both Irish Ferries and Stena Line sail from Salt Island to Dublin port and to Dún Laoghaire. The Holyhead lifeboat station is also on the island.
