Bergusia is a Celtic goddess worshipped in Gaul, at Alesia in what is now Burgundy. She may have been a goddess of crafts, particularly of metalworkers; this seems likely due to her presence at a shrine within a metalworkers’ guild.
She is often accompanied by the god Ucuetis, also likely to have been a god of crafts.
Bergusia received votive and dedicatory offerings from her worshippers; apart from this, little is known of the specifics of her cult.
Bergusia’s name may have been derived from the Indo-European *bhergh- or “high,” a possibility leading some to suggest that she may have been at one time a mountain-goddess. Alternatively the name may have come from the Proto-Celtic *bero- or “bring” and *gustu or “force”; the concept of “bringing force” does work for a deity concerned with metal-crafting. (Personally I find that possibility a bit on the nose, but it’s certainly possible and is worth considering.) She may be etymologically related to another Gaulish goddess, Bergonia.
Bergusia is known from a single inscription in Alesia in Gaul (Alise-Sainte-Reine in modern France), where she is worshipped with her consort, Ucuetis.