Mexico-Tenochtitlan (kastilla : México-Tenochtitlan, Spanish pronunciation: [ˈmexiko tenotʃˈtitlan]), commonly known as Tenochtitlan (Classical Nahuatl: Mēxihco-Tenōchtitlan [meːˈʃíʔ.ko te.noːt͡ʃ.ˈtí.t͡ɬan]) was a Mexica (city-state) located on an island in Lake Texcoco, in the Valley of Mexico.