Alaunus is a Celtic god worshipped in Gaul. Given the probable root of his name, he was likely a protector god, associated with abundance and prosperity.

He was sometimes identified by the Romans with their god Mercury by way of the interpretatio romana.

Alaunus may be connected to the goddess Alauda/Alauna, worshipped in Pantenburg, Germany, although there is no record of their appearing together.

Myth
Unknown.

Cult
Alaunus received votive and dedicatory offerings from his worshippers; otherwise little is known of the specifics of his cult.

Etymology
Alaunus’ name may have been derived from the Proto-Celtic *al-o or “nourish.”

Region
Alaunus was worshipped in Gaul, mainly in what is now central Europe..

Literary evidence
Unknown.

Archaeological evidence
Salzburg, Austria; Lurs, France; Mannheim, Germany