| Competition: | Nemzeti Bajnokság I |
| Season: | 2017–18 |
| Winners: | Videoton |
| Relegated: | Balmazújváros Vasas |
| Continentalcup1: | Champions League |
| Continentalcup1 Qualifiers: | Videoton |
| Continentalcup2: | Europa League |
| Continentalcup2 Qualifiers: | Ferencváros Újpest Honvéd |
| League Topscorer: | Davide Lanzafame (18 goals) |
| Biggest Home Win: | Diósgyőr 5–0 Vasas |
| Biggest Away Win: | Vasas 1–5 Debrecen |
| Highest Scoring: | Ferencváros 5–2 Vasas Honvéd 4–3 Puskás Akadémia Debrecen 2–5 Videoton Ferencváros 5–2 Honvéd |
| Highest Attendance: | 19,125 Ferencváros 2–1 Debrecen |
| Lowest Attendance: | 200 Puskás Akadémia 0–0 Debrecen[1] |
| Prevseason: | 2016–17 |
| Nextseason: | 2018–19 |
The 2017–18 Nemzeti Bajnokság I (also known as 2017–18 OTP Bank Liga), also known as NB I, was the 119th season of top-tier football in Hungary. The league was officially named OTP Bank Liga for sponsorship reasons. Honvéd were the defending champions, having won their fourteenth Hungarian league title. As in the previous season, 12 teams competed for the championship title and played 33 matches. The fixtures were published on 14 July 2017.
On 20 June 2017, the rounds were drawn by the Hungarian Football Federation. The 33 rounds was divided into two parts. 19 rounds were played in 2017 and the remaining 14 in 2018.[2]
MTK and Gyirmót finished the 2016–17 Nemzeti Bajnokság I in the last two places and thus were relegated to NB II division.
The two relegated teams were replaced with the top two teams in 2016–17 Nemzeti Bajnokság II, champion Puskás Akadémia and runner-up Balmazújváros, each having the required licence for top-division play.
Following is the list of clubs competed in the league this season, with their location, stadium and stadium capacity.
| Team | Location | Stadium | Capacity | ||
|---|---|---|---|---|---|
| Balmazújváros | Balmazújváros | Városi Sportpálya | 2,435 | [3] | |
| Debrecen | Debrecen | Nagyerdei Stadion | 20,340 | [4] | |
| Diósgyőr | Miskolc | Diósgyőri Stadion 1 | 15,325 | [5] | |
| Debrecen | Nagyerdei Stadion | 20,340 | |||
| Ferencváros | Budapest (Ferencváros) | Groupama Aréna | 23,700 | [6] | |
| Haladás | Szombathely | Haladás Sportkomplexum 2 | 9,859 | ||
| Sopron | Káposztás utcai Stadion 2 | 5,300 | [7] | ||
| Honvéd | Budapest (Kispest) | Bozsik József Stadion | 10,000 | [8] | |
| Mezőkövesd | Mezőkövesd | Városi Stadion | 4,183 | [9] | |
| Paks | Paks | Fehérvári úti Stadion | 6,150 | [10] | |
| Puskás Akadémia | Felcsút | 3,816 | [11] | ||
| Újpest | Budapest (Újpest) | 13,501 | [12] | ||
| Vasas | Budapest (Angyalföld) | Szusza Ferenc Stadion 3 | 13,501 | ||
| Videoton | Felcsút | Pancho Aréna 4 | 3,816 |
| Balmazújváros | Debrecen | Diósgyőr | Ferencváros | |
|---|---|---|---|---|
| Városi Sportpálya | Nagyerdei Stadion | Diósgyőri Stadion | Groupama Aréna | |
| Capacity: 2,435 | Capacity: 20,340 | Capacity: 15,325 | Capacity: 23,700 | |
| Haladás | Honvéd | |||
| Haladás Sportkomplexum | Bozsik József Stadion | |||
| Capacity: 9,859 | Capacity: 10,000 | |||
| Mezőkövesd | Paks | |||
| Városi-Stadion | Fehérvári úti Stadion | |||
| Capacity: 4,183 | Capacity: 6,150 | |||
| Puskás Akadémia | Újpest | Vasas | Videoton | |
| Pancho Aréna | Szusza Ferenc Stadion | Szusza Ferenc Stadion | Pancho Aréna | |
| Capacity: 3,816 | Capacity: 13,501 | Capacity: 13,501 | Capacity: 3,816 | |
Following is the list of clubs competed in the league this season, with their manager, captain, kit manufacturer and shirt sponsor.
Note: Flags indicate national team as has been defined under FIFA eligibility rules. Players and Managers may hold more than one non-FIFA nationality.
| Team | Manager | Captain | Kit manufacturer | Shirt sponsor | |||
|---|---|---|---|---|---|---|---|
| Name | Name | ||||||
| Balmazújváros |  | Ferenc Horváth | | Dávid Sigér | Adidas | Kamilla Gyógy-, Termál- és Strandfürdő | |
| Debrecen | | András Herczeg | | Dániel Tőzsér | Adidas | TEVA | |
| Diósgyőr |  | Fernando | | Nike | Borsodi | ||
| Ferencváros | Thomas Doll | | Nike | Magyar Telekom | |||
| Haladás |  | Michal Hipp | | Adidas | Swietelsky | ||
| Honvéd | | Attila Supka |  | Đorđe Kamber | Macron | – | |
| Mezőkövesd | | Attila Kuttor | | Adidas | Cronus, Zsóry | ||
| Paks | | Aurél Csertői | | Jako | – | ||
| Puskás Akadémia | | Attila Pintér | | Attila Polonkai | Adidas | Mészáros és Mészáros Kft. | |
| Újpest |  | Nebojša Vignjević | | Joma | Gallica | ||
| Vasas | Michael Oenning | | András Debreceni | Adidas | Alprosys | ||
| Videoton | | Marko Nikolić | | Adidas | MOL | ||
| Team | Outgoing manager | Manner of departure | Date of vacancy | Position in table | Replaced by | Date of appointment | |
|---|---|---|---|---|---|---|---|
| Honvéd |  Marco Rossi | Resigned | End of 2016–17 season | Pre-season |  Erik van der Meer | 28 May 2017[15] | |
| Videoton |  Henning Berg | Contract terminated | End of 2016–17 season | Marko Nikolić | 6 June 2017[16] | ||
| Balmazújváros | Tamás Feczkó | Contract run out | End of 2016–17 season | Ferenc Horváth | 14 June 2017[17] | ||
| Haladás | Géza Mészöly | Mutual agreement | 29 August 2017[18] | 10th | Bálint Pacsi | 30 August 2017[19] | |
| Mezőkövesd | Mikuláš Radványi | Mutual agreement | 16 October 2017[20] | 11th | Attila Kuttor | 17 October 2017[21] | |
| Haladás | Bálint Pacsi | Sacked | 8 November 2017[22] | 11th | Michal Hipp | 13 November 2017[23] | |
| Honvéd | Erik van der Meer | Sacked | 9 December 2017[24] | 4th | Attila Supka | 10 December 2017[25] | |
| Diósgyőr | Tamás Bódog | Sacked | 23 April 2018[26] | 9th | Fernando | 23 April 2018 |
In the first 22 rounds each team played against every other team home-and-away in a round-robin format. In the remaining 11 rounds, the first six placed teams from the previous season played six matches at home and five matches away, and the remaining six teams played five matches at home and six matches away.
| Rank | Player | Club | Goals |
|---|---|---|---|
| 1 | Davide Lanzafame | Honvéd | 18 |
| 2 | Soma Novothny | Újpest | 17 |
| Roland Varga | Ferencváros | 17 | |
| 4 | Márton Eppel | Honvéd | 14 |
| Danko Lazović | Videoton | 14 | |
| 6 | Dániel Böde | Ferencváros | 13 |
| 7 | Haris Tabaković | Debrecen | 12 |
| 8 | Josip Knežević | Puskás | 11 |
| 9 | Márk Koszta | Mezőkövesd | 10 |
 Joseph Paintsil | Ferencváros | 10 | |
| Marko Šćepović | Videoton | 10 | |
| 7 | |||
| Tamás Takács | Debrecen | 7 | |
| 10 | 4 players | 6 | |
Updated to games played on 3 June 2018[27]
| Name | For | Against | Round | Result | Date | ||
|---|---|---|---|---|---|---|---|
| Dániel Böde | Ferencváros | Balmazújváros | 22nd | 5–0 | 10 March 2018[28] | ||
| Marko Šćepović | Videoton | Debrecen | 16th | 2–5 | 18 November 2017[29] | ||
| Mohamed Remili | Vasas | Honvéd | 11th | 1–4 | 30 September 2017[30] | ||
| Soma Novothny | Újpest | Mezőkövesd | align=center | 10th | align=center | 2–4 | 23 September 2017[31] |
| Roland Varga | Ferencváros | Vasas | align=center | 8th | align=center | 5–2 | 9 September 2017[32] |