Louis Otto, Prince of Salm[1][better source needed] (24 October 1674 – 23 November 1738) was the Count of Salm-Salm from 1710, the only son of the Imperial chamberlain (Reichskämmerer) Charles Theodore, Prince of Salm (1645–1710) and Countess Palatine Luise Maria of Simmern (1647–1679).[2][3]