Lists of lighthouses in the United Kingdom cover lighthouses, structures that emit light to serve as navigational aids, in the United Kingdom. They are organized by region. The list for Ireland includes both Northern Ireland and the Republic of Ireland.
This article contains links to lists of lighthouses around the world. According to Lighthouse Directory, there are more than 18,600 lighthouses worldwide.
Lightvessels in Ireland describes any lightvessel or light float previously stationed off the coast of Ireland. The Commissioners of Irish Lights are responsible for the majority of marine navigation aids around the whole of the island of Ireland.