In Celtic mythology, the god Abandinus is mysterious, currently known only from a single inscription from Cambridgeshire, England in Godmanchester; specifically, an inscribed bronze votive feather is dedicated to him with the text to the god Abandinus, Vatiaucus gave this from his own resources. Some believe that he was associated with the river Ouse (formerly known as Abona or Afon), though Celtic river deities were almost always female, so this may be unlikely; he may also have been associated with a local spring. Others have suggested that is related to Mabon, a more popular Celtic deity; though it seems unlikely, Abandinus and Mabon have linguistic characteristics that make this theory possible.