Molossian hound

Dog breed · Epirus

Overview

The Molossus (Greek: Μολοσσός, romanized: Molossós), also known as the Molossian hound and Epirus mollosus, is an extinct dog breed from Ancient Greece.

History

History: The Molossus were dogs that were kept by the ancient Greek tribe and kingdom of the Molossians, who inhabited the region of Epirus.

The Molossus were famous throughout the ancient world for their size and ferocity and were frequently mentioned in ancient literature, including the writings of Aristophanes, Aristotle, Grattius, Horace, Lucan, Lucretius, Martial, Nemesianus, Oppian of Apamea, Plautus, Seneca, Statius, and Virgil. The Molossians issued silver coinage with an image of a Molossus as their emblem.

It is sometimes stated in books and magazines, particularly in Continental Europe and North America, that all mastiff-type dogs are descended from the Molossus. This theory states that the breed's progenitors arrived in Molossia from Asia and were eventually discovered by the Romans who employed large numbers as guards for the Roman Army; this theory speculates that the various mastiff breeds found throughout Europe descend from dogs left behind by the Romans. This theory has been questioned by many experts who state it relies on guesswork and lacks historical evidence, and that mastiffs likely developed elsewhere.

Every pet is one of a kind. This guide covers what's typical for the breed, but your own dog or cat will have their own personality, quirks and needs — think of it as a friendly starting point, not the final word. Whenever you'd like advice tailored to your companion, the team at OC Pets is always happy to help.
Sources (reused under open licences, with thanks): Wikipedia — “Molossian hound” (CC BY-SA 4.0) · Wikidata (CC0) · image (CC BY-SA 4.0, via Wikimedia Commons) · Compiled by OC Pets Veterinary Clinic, updated 15-06-2026.