Ogmios

thumb|300px|Albrecht Dürer's rendition of the image of Ogmios which Lucian describes Ogmios (sometimes Ogmius; ) is the name given to a Celtic god of eloquence described in Heracles, a work of the Syrian satirist Lucian.

Lucian's Heracles is a prolalia, that is, a short text which was read aloud before a longer public performance. It describes Lucian's viewing of a strange image of Ogmios in Gaul, wherein the god is depicted as a dark-skinned, aged version of the Greek hero Heracles, with a group of happy devotees tied by bejewelled chains to this god's tongue. Lucian describes a Celt who approaches him and explains these features, informing him that they reflect a native association of Ogmios with eloquence, which, the Celt explains, reaches its highest level in old age. Lucian uses this anecdote to prove to his audience that, in old age, he is still competent to deliver public performances.