Suttungr or Saturn XXIII, is a moon of Saturn. It was found by Brett J. Gladman, et al. in 2000, and given the designation S/2000 S 12.
Suttungr is about 5.6 kilometres in diameter, and orbits Saturn at an average distance of 19,667,000 km in 1029.703 days, at an inclination of 174° to the ecliptic (151° to Saturn's equator), with an eccentricity of 0.131.
Suttungr may have formed from debris knocked off of Phoebe at some point in the past.