János Hahn

Paks

Hahn progressed through the youth system of Paks and made his senior debut in the Nemzeti Bajnokság I at the age of 17 on 30 November 2012, appearing as a substitute in a 2–0 home victory against Pápa. He entered the match in the 87th minute, replacing Márton Eppel.

Puskás Akadémia

On 25 July 2013, Hahn joined newly promoted Nemzeti Bajnokság I club Puskás Akadémia as a free agent after his contract expired at Paks, signing a three-year deal as a Hungary youth international.

Return to Paks

Hahn returned to Paks after one year away, with Zsolt Gévay also rejoining the club. He became the top goalscorer of the 2020–21 Nemzeti Bajnokság I with 22 goals, the highest total in the league for six years, as Paks scored a record 76 goals during the season, the most by any team since the league was reduced to 12 clubs.

DAC Dunajská Streda

On 3 September 2021, Hahn transferred from Hungary to Slovak First Football League club DAC Dunajská Streda, signing a two-year contract with an option for a further season.

Third spell at Paks

On 31 August 2022, Hahn returned from Slovakia to the Tolna County club in a permanent transfer shortly before the Nemzeti Bajnokság I transfer deadline. On 15 May 2024, he won the 2024 Magyar Kupa final with Paks by beating Ferencváros 2–0 at the Puskás Aréna.

Hahn appeared for the Hungary U18 national team on 14 March 2013, coming on as a substitute in the 75th minute for Szabolcs Varga in a 4–2 win against Macedonia in Telki. He was later called up to the Hungary U19 national team by Géza Mészöly for their first training camp of the year in preparation for the 2014 UEFA European Under-19 Championship. Hahn was not included in the final squad for the tournament. On 1 June 2021, Hahn was included in the final 26-man squad to represent Hungary at the rescheduled UEFA Euro 2020 tournament. He debuted for Hungary in a friendly 1–0 win over Cyprus on 4 June 2021.

Club

As of match played 1 February 2026

International

Paks II

Megyei Bajnokság I – Tolna: 2014–15 Paks

Magyar Kupa: 2023–24 Individual

Nemzeti Bajnokság I top goalscorer: 2020–21