The 2023–24 season was Diósgyőri Vasgyárak Testgyakorló Köre's 58th competitive season, 111th year in existence as a football club and first season in the Nemzeti Bajnokság I after winning the second division in the previous season. In addition to the domestic league, Diósgyőr participated in that season's editions of the Magyar Kupa.
After gaining promotion last season, Serhiy Kuznetsov was sacked by Diósgyőr on 31 January 2024. Miklós Simon, the professional director of the Diósgyőr Football Academy was appointed as interim manager. On 14 February 2024, Vladimir Radenković was appointed as Kuznetsov's permanent successor, who worked at the club nine years ago as the assistant coach to Tomislav Sivić.
"Squad at end of season"
Squad.
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Transfers.
Loans out.
Source: 
Competitions.
Nemzeti Bajnokság I.
Matches.
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Magyar Kupa.
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Notes.
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References.
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