Erriapus or Saturn XXVIII, is non-spherical moon of Saturn. It was found by Brett Gladman, John J. Kavelaars, et al. in 2000, and given the designation S/2000 S 10. It was named in August 2003 after Erriapo, a giant in Gaulish mythology. Later, the spelling was corrected to "Erriapus".