Jan Fortelný (born 19 January 1999) is a Czech footballer who plays as a midfielder for Jablonec.
He made his debut for the first team on 20 September 2020 in the Czech First League match against FC Fastav Zlín.
He also played in 3 matches (scoring 3 goals) for reserve team in Bohemian Football League.
On 17 August 2018 he was loaned to FC Sellier & Bellot Vlašim in Czech National Football League.
On 11 July 2019 he was loaned to FC Vysočina Jihlava also in Czech National Football League.