Artio (Dea Artio in the Gallo-Roman religion) was a Celtic bear goddess. Evidence of her worship has notably been found at Bern (Switzerland) whose name according to legend is derived from the word Bär, "bear"^{[citation needed]}.

A bronze sculpture from Muri, near Bern in Switzerland shows a large bear facing a woman seated in a chair, with a small tree behind the bear. The woman seems to hold fruit in her lap, perhaps feeding the bear. (Deyts p.48, Green pp.217-218). The sculpture has a large rectangular bronze base, which bears an inscription. (CIL 13, 05160)

To the Goddess Artio (or Artionis), from Licinia Sabinilla. If the name is Gaulish but the syntax is Latin, a dative Artioni would give an i-stem nominative *Artionis or an n-stem nominative *Artio. That would perhap correspond to a Gaulish n-stem nominative *Artiu.

Other inscription to the goddess have been discovered in Daun (CIL 13, 4203), Weilerbach (CIL 13, 4113), Heddernheim (CIL 13, 7375 [4, p 125]), and Stockstadt (CIL 13, 11789).