The Yahgan (also called Yagán, Yaghan, Yámana, Yamana, or Tequenica) are a group of Indigenous peoples in the Southern Cone of South America. Their traditional territory includes the islands south of Isla Grande de Tierra del Fuego, extending their presence into Cape Horn, making them the world's southernmost Indigenous human population.
In the 19th century, the Yahgan were known in English as "Fuegians." The name is credited to Captain James Weddell, who supposedly created the term in 1822.The term is now avoided as it can also refer to several other Indigenous peoples of Tierra del Fuego, for example the Selkʼnam.