Xanthodius is a genus of crabs in the family Xanthidae, containing one exclusively fossil species and the following species:Xanthodius cooksoni †Xanthodius falconensis Schweitzer, Hyžný & Feldmann, 2021 Xanthodius inaequalis †Xanthodius kambaraensis Rathbun, 1945 Xanthodius sternberghii Stimpson, 1859