Pétion-Ville is a commune and a suburb of Port-au-Prince, Haiti, in the hills east and separate from the city itself on the northern hills of the Mass…Pétion-Ville is a commune and a suburb of Port-au-Prince, Haiti, in the hills east and separate from the city itself on the northern hills of the Massif de la Selle. Founded in 1831 by president Jean-Pierre Boyer, it was named after Alexandre Sabès Pétion, the Haitian general and president later recognized as one of the country's four founding fathers.