The S2 8.0 C is an American trailerable sailboat that was designed by Arthur Edmunds as a cruiser and first built in 1975. The number designation indicates the approximate length overall in meters and the "C" indicates "center cockpit". The S2 8.0 A, S2 8.0 B and the 8.0 C all share the same hull design, with different deck configurations and interior arrangements used.