| Competition: | Nemzeti Bajnokság II |
| Season: | 2012–13 |
| Winners: | Puskás Akadémia (West) Mezőkövesd (East) |
| Biggest Home Win: | Békéscsaba 6–4 Cegléd |
| Biggest Away Win: | Kazincbarcika 1–3 Vác |
| Highest Scoring: | Békéscsaba 6–4 Cegléd |
| Matches: | 7 |
| Total Goals: | 29 |
| Longest Wins: | 6 teams (1 games) |
| Longest Unbeaten: | 8 teams (1 games) |
| Longest Winless: | 8 teams (1 games) |
| Longest Losses: | 6 teams (1 games) |
| Prevseason: | 2011–12 |
| Nextseason: | 2013–14 |
Zalaegerszeg and Vasas finished the 2011–12 season in the bottom two places of the table and thus were relegated to their respective NB II divisions. Vasas ended an 8-year stay in the top league. Zalaegerszeg ended an 18-year stay in the top league.The two relegated teams were replaced with the champions of the two 2011–12 NB II groups, Eger of the East Group and MTK of the West Group. MTK made their immediate comeback to the league, while Eger returned to the competition after an absence of 26 seasons.
| Club | Short name | City | Stadium [1] | Capacity | |
|---|---|---|---|---|---|
| Balmazújváros | Balmazújváros | Batthyány utcai Sportpálya | 2,300 | ||
| Békéscsaba | Békéscsaba | Kórház utcai stadion | 10,432 | ||
| Honvéd II | Budapest | Bozsik Stadion (Training) | 700 | ||
| Cegléd | Cegléd | Malomtó széli Stadion | 4,000 | ||
| Debrecen II | Debrecen | DEAC Stadion | 3,200 | ||
| FTC II | Budapest | Stadion Albert Flórián | 15,804 | ||
| Kazincbarcika | Kazincbarcika | Pete András Stadion | 3,000 | ||
| Mezőkövesd | Mezőkövesd | Mezőkövesdi Városi Stadion | 2,571 | ||
| Nyíregyháza | Nyíregyháza | Városi Stadion | 10,300 | ||
| Orosháza | Orosháza | Mátrai- Stadion | 3,000 | ||
| Putnok | Putnok | Stadium Állomás Street | 3,000 | ||
| Szeged | Szeged | Szegedi VSE Stadion | 5,000 | ||
| Szolnok | Szolnok | Tiszaligeti Stadion | 4,000 | ||
| Újpest II | Budapest | Szusza Ferenc Stadium | 13,501 | ||
| Vasas | Budapest | Stadion Rudolf Illovszky | 18,000 | ||
| Vác | Vác | Városi Stadion | 9,000 |
| Club | Short name | City | Stadium | Capacity | |
|---|---|---|---|---|---|
| Ajka | Ajka | Stadium Város | 5,000 | ||
| Baja | Baja | Stadium Város | 700 | ||
| Budapest | Budapest | Stadium Sport Street | 2,500 | ||
| Csákvár | Csákvár | Tersztyánszky Ödön Stadium | 2,500 | ||
| Gyirmót | Győr | Ménfői út | 2,700 | ||
| Győr II | Győr | ETO Park (Training) | 1,000 | ||
| Kaposvár II | Kaposvár | Stadium Cseri Street | 2,000 | ||
| Kozármisleny | Kozármisleny | Stadium Alkotmány Square | 1,500 | ||
| Paks II | Paks | Stadium Atomerőmű | 3,500 | ||
| Puskás | Felcsút | Felcsúti Sportkomplexum | 3,000 | ||
| Sopron | Sopron | Stadium Káposztás Street | 5,800 | ||
| Szigetszentmiklós | Szigetszentmiklós | Stadium Sport Street | 1,200 | ||
| Szombathely II | Szombathely | Rohonci Street Stadium | 9,500 | ||
| Tatabánya | Tatabánya | Stadion Városi | 5,021 | ||
| Veszprém | Veszprém | Stadion Városi | 4,000 | ||
| ZTE | Zalaegerszeg | ZTE Arena | 9,300 |
|}
All times Central European Summer Time (UTC+2)
Szigetszentmiklós won 7–1 on aggregate and therefore both clubs remained in their respective leagues.----Dunaújváros won 2–1 on aggregate and are promoted to the Nemzeti Bajnokság II, while Sopron were about to be relegated to the Nemzeti Bajnokság III, however they took over the vacant place of Eger.[2] ----Szolnok won 11–1 on aggregate and therefore both clubs remained in their respective leagues.----Kisvárda won 4–1 on aggregate and are promoted to the Nemzeti Bajnokság II, while Szeged are relegated to the Nemzeti Bajnokság III.----Cegléd won 6–2 on aggregate and therefore both clubs remained in their respective leagues.----Tatabánya won 7–3 on aggregate and therefore both clubs remained in their respective leagues.