Ogmios (Ogmia) is a Celtic god worshipped in Gaul and Britain; he is almost certainly related to the Irish god Ogma who is associated with poetry and inspiration. Ogmios himself appears to be a god of eloquence and persuasion, wielding the power of the spoken word.

Ogmios was sometimes identified by the Romans with their god Hercules by way of the interpretatio romana.

Unknown. Ogmios may have shared some stories or lore with the Irish Ogma but there is no way to know.

Ogmios was believed to be able to answer prayers/work magic on his worshippers’ behalf; apart from this, little is known of the specifics of his cult.

The origin of Ogmios’ name is uncertain, though it is likely to be related to the name of the Irish god Ogma and to the ogham script.

Ogmios is known primarily from the account by Lucian (see below) and from a handful of small inscriptions, mainly in south-central Gaul.

Literary evidence
The Greek writer Lucian describes an image of Ogmios and comparing him to the Greek Heracles; according to Lucian, Ogmios is depicted as an old man dressed in Heracles’ lion-skin and bearing his club, with a number of delicate chains through his tongue by which he leads a group of cheeful men. This is believed to illustrate the power of the spoken word.

Archaeological evidence
Bregenz, Austria; Richborough, England; Rochester, England; Aix-en-Provence, France; Castellane, France; Reims, France