1999–2000 Primera B Nacional
| Season | 1999–00 |
|---|---|
| Champions | Huracán (2nd divisional title) |
| Promoted | Huracán Los Andes Almagro |
| Relegated | Deportivo Español Gimnasia y Tiro Argentino (R) Deportivo Morón Aldosivi Temperley |
| Top goalscorer | Gastón Casas 30 goals |
← 1998–99 2000–01 → | |
The 1999–00 Argentine Primera B Nacional was the 14th season of second division professional of football in Argentina. 34 teams competed; the champion and runner-up were promoted to Argentine Primera División.