The Curonians or Kurs (Latvian: kurši; Lithuanian: kuršiai) were a medieval Baltic tribe living on the shores of the Baltic Sea in the 5th–16th centuries, in what are now western parts of Latvia and Lithuania. They eventually merged with other Baltic tribes contributing to the ethnogenesis of present-day Latvians and Lithuanians. Curonians gave their name to the region of Courland (Kurzeme), Kuršėnai town, Curonian spit and many other localities. They spoke the Curonian language.
