"Tlön, Uqbar, Orbis Tertius" is a short story by the 20th-century Argentine writer Jorge Luis Borges. The story was first published in the Argentine journal Sur, May 1940. The "postscript" dated 1947 is intended to be anachronistic, set seven years in the future. The first English-language translation of the story, by James E. Irby, was published in 1961 in New World Writing N° 18. In 1962 it was included in the short story collection Labyrinths, the first collection of Borges' works published in English.