Fosta in North German mythology, was a goddess worshipped by the Frisians. She stands in close union with Herthia, the goddess of the earth. Both are goddesses of peace, and it is singular that they appear armed. In the temple of Fosta, on Helgoland, she was represented with bow and arrow at her back, a helmet on her head, five arrows in her left hand, and four ears of corn in her right. She was worshipped in Holstein and Denmark.