Youssouf Oumarou Alio is a Nigerien midfielder from Niamey. His club career has taken him through Niger, Gabon, Morocco, Ivory Coast, Tunisia, Iraq and Saudi Arabia, including spells with Union Monastirienne, Espérance de Tunis, Stade Tunisien and Al-Karma before joining Al-Hazem. He has been a long-serving Niger international and has scored in Africa Cup of Nations qualification.