Born in
Dakar, Thioune started his career with
Diambars. He took part of the club's Ligue 2 winning campaign in 2011, as well in their
Premier League and
League Cup accolades in 2013 and 2016, respectively. He made his professional debut late in the month, stating in a 4–1 home routing of
Difaa El Jadida. He was among the squad during the
2017–18 season which was crowned champions for the first time ever. In July 2019 he signed for French club
Sochaux. On 15 July 2022, Thioune signed a two-year contract with
Dijon. He moved to
Anorthosis Famagusta in August 2023. In 2025 he signed for
Iraq Stars League club
Al-Minaa. His contract expired on 30 June 2025 and was not renewed with the club. On 10 September 2025, Thioune joined Saudi FDL club
Al-Jubail. ==International career==