Ousseynou Cavin Diagné (born 5 June 1999) is a Senegalese football midfielder who plays for ES Zarzis. He played youth football for Cádiz CF and had modest spells in Le Mans and Club Brugge II before moving to his fourth European country, signing for Kristiansund BK in February 2020. He made his Eliteserien debut in July 2020 against Bodø/Glimt. In 2021 he trialled with Raufoss IL, but stayed with Kristiansund. He was however released in late May 2021.