The Ras Nouadhibou lighthouse (sometimes called the Cap Blanc lighthouse) is a lighthouse located on Ras Nouadhibou in Mauritania. Constructed in 1910, it is today located only a few feet from Mauritania's border with Western Sahara. In recent years it appears to have been replaced with a modern fiberglass light structure. The lighthouse serves as a landfall light for the port of Nouadhibou.