1984–85 Mexican Segunda División season
| Season | 1984–85 |
|---|---|
| Champions | Irapuato (2nd Title) |
| Promoted | Santos Laguna UAQ San Mateo Atenco |
| Relegated | Nuevo Necaxa Zamora Yucatán |
| Matches played | 398 |
| Goals scored | 1,047 (2.63 per match) |
| Top goalscorer | Raúl Paredes (25 goals) |
← 1983–84 1985–86 → | |
The 1984–85 Segunda División was the 36th season of the Mexican Segunda División. The season started on 24 August 1984 and concluded on 23 June 1985. It was won by Irapuato.