Alexandre Sabès Pétion (; April 2, 1770 – March 29, 1818) was the first President of the Republic of Haiti from 1807 until his death in 1818. He is acknowledged as one of Haiti's founding fathers; a member of the revolutionary quartet that also includes Toussaint Louverture, Jean-Jacques Dessalines, and his later rival Henri Christophe. Regarded as an excellent artilleryman in his early adulthood, Pétion would distinguish himself as an esteemed military commander with experience leading both French and Haitian troops. The 1802 coalition formed by he and Dessalines against French forces led by Charles Leclerc would prove to be a watershed moment in the decade-long conflict, eventually culminating in the decisive Haitian victory at the Battle of Vertières in 1803.