The 1990–91 Nemzeti Bajnokság III season was the 9th edition of the Nemzeti Bajnokság III. League tables

Alföld group

Bakony group

Dráva group

Duna group

Mátra group

Tisza group

See also 1990–91 Magyar Kupa 1990–91 Nemzeti Bajnokság I 1990–91 Nemzeti Bajnokság II

References