The Old Croatian Sighthound (Croatian: hrti, 'greyhound'), also known as the Old Bosnian Sighthound, is an extinct breed of sighthound from the Balkan countries of Bosnia–Herzegovina and Croatia. It is claimed the Old Croatian Sighthound was descended from sighthounds kept by the Celts; it closely resembled images of dogs on Celtic coins from the 5th century BC, as such it is believed to be closely related to the greyhound, which was introduced to Britain by the Celts. Descriptions of the breed in the Balkans have been found in the writings of friars from the 13th and 14th centuries AD.