1966 Országos Bajnokság I (men's water polo) was the 60th water polo championship in Hungary. There were ten teams who played three-round match for the title.
| Team | M | W | D | L | G+ | G− | P | |
|---|---|---|---|---|---|---|---|---|
| 1. | BVSC | 27 | 18 | 6 | 3 | 159 | 106 | 42 |
| 2. | Ferencvárosi TC | 27 | 16 | 7 | 4 | 152 | 96 | 39 |
| 3. | Újpesti Dózsa | 27 | 16 | 7 | 4 | 144 | 94 | 39 |
| 4. | Csepel Autó | 27 | 10 | 14 | 3 | 133 | 116 | 34 |
| 5. | Bp. Honvéd | 27 | 11 | 9 | 7 | 135 | 111 | 31 |
| 6. | Szolnoki Dózsa | 27 | 11 | 9 | 7 | 145 | 128 | 31 |
| 7. | Egri Dózsa | 27 | 9 | 7 | 11 | 118 | 124 | 25 |
| 8. | OSC | 27 | 3 | 6 | 18 | 97 | 126 | 12 |
| 9. | Vasas Izzó | 27 | 5 | 2 | 20 | 94 | 173 | 12 |
| 10. | Budai Spartacus | 27 | 2 | 1 | 24 | 125 | 228 | 5 |
* M: Matches W: Win D: Drawn L: Lost G+: Goals earned G−: Goals got P: Point