Tirésias Augustin Simon Sam (1835 – 1916) was the President of Haiti from 31 March 1896 to 12 May 1902. He abdicated the presidency just before completing his six-year term. A likeness of Simon Sam has been featured on several Haitian postage stamps. His son, Jean Vilbrun Guillaume Sam, also became President of Haiti.
His mistress, Victoire Jean-Baptiste, is said to have had some influence over him.