Around the globe, Oulion (Oulion 
) is an extremely rare unknown gender forename. Much more frequently, Oulion is the last name as well as the forename.
Mr, Corine, Claude, Romain, Martine, Alexine, Antonin, Corinne, Patrick, Dimitri, Laurent, Thierry, Nicolas, Estelle, Olivier, Wilfrid, Emmanuel, Isabelle, Wilfried, Christian, Audrey, Adrien, Andrea, Silvan, Guy, Paul, Rene, Joel, Jean, Enzo, Marie, Sarah, Alice, Jean-Paul, Allan, Brice, Roger, Denis, Dayna, Léaa, Marina, Maxime, Michel, Sabine, Cyril, and Anne-Sophie