| Competition: | NB I |
| Season: | 1980 (30.) |
| Winners: | Vasas SC (9th title) |
| Continentalcup1: | European Cup |
| Continentalcup1 Qualifiers: | Vasas SC |
| Continentalcup2: | Cup Winners' Cup |
| Continentalcup2 Qualifiers: | Bp. Spartacus |
| Continentalcup3: | IHF Cup |
| Continentalcup3 Qualifiers: | Bakony Vegyész |
| Prevseason: | 1979 |
| Nextseason: | 1981 |
The 1980 Nemzeti Bajnokság I is the 30th season of the Nemzeti Bajnokság I, Hungary's premier Handball league.
| Team | M | W | D | L | G+ | G− | P | Notes | |
|---|---|---|---|---|---|---|---|---|---|
| 1. | Vasas SC | 22 | 21 | 0 | 1 | 417 | 251 | 42 | 1981-82 European Cup 1/8 final |
| 2. | Bp. Spartacus | 22 | 15 | 4 | 3 | 417 | 353 | 34 | |
| 3. | Ferencvárosi TC | 22 | 14 | 2 | 6 | 427 | 345 | 30 | |
| 4. | Tatabányai Bányász | 22 | 14 | 1 | 7 | 364 | 319 | 29 | |
| 5. | Építők SC | 22 | 10 | 3 | 9 | 326 | 320 | 23 | |
| 6. | Bakony Vegyész | 22 | 10 | 1 | 11 | 335 | 356 | 21 | |
| 7. | Győri Textiles | 22 | 8 | 4 | 10 | 333 | 351 | 20 | |
| 8. | Debreceni MVSC | 22 | 7 | 2 | 13 | 318 | 376 | 16 | |
| 9. | Dunaújvárosi Kohász | 22 | 5 | 4 | 13 | 337 | 386 | 14 | |
| 10. | BHG SE | 22 | 5 | 3 | 14 | 287 | 335 | 13 | |
| 11. | Csepel SC | 22 | 4 | 4 | 14 | 315 | 385 | 12 | Relegated to Nemzeti Bajnokság I/B |
| 12. | Testnevelési Főiskola SE | 22 | 4 | 2 | 16 | 307 | 406 | 10 |