Simeon Marcus Larson (5 January 1825 – 25 January 1864) was a Swedish landscape painter from Åtvidaberg, Östergötland. He has been recognized as "one of Sweden's foremost 19th-century painters" and labeled as "the most outstanding of the Swedish Düsseldorf painters." His paintings were known for being dramatic and primarily depicted rivers under violent skies as well as shipwrecks in storms.