The Otterhound's Origins and History Source: Wikipedia. Country/Region of Origin: United Kingdom Original purpose: hunting Name: from hunting otters. Historical notes: The Otterhound breed is descended from the Bloodhound breed. The Otterhound dog breed is also one ancestor of the Airedale Terrier. Today it is estimated there are only 1,000 purebred Otterhounds in the world. Arguably, the small numbers are due to the fact that otter hunting has been banned in most parts of the world.