The Minho (/ˈmiːn.juː/ MEEN-yoo, Portuguese: [ˈmiɲu]) or Miño (/ˈmiːnjoʊ/ MEEN-yoh, Spanish: [ˈmiɲo], Galician: [ˈmiɲʊ]; Proto-Celtic: *Miniu) is the longest river in Galicia, sharing the border with Portugal, with a length of 340 kilometres (210 mi). By discharge, it is the fourth river of the Iberian peninsula, after the Douro, Ebro, and Tagus.