1984–85 Mexican Segunda División season

Segunda División de México
Season1984–85
ChampionsIrapuato (2nd Title)
PromotedSantos Laguna
UAQ
San Mateo Atenco
RelegatedNuevo Necaxa
Zamora
Yucatán
Matches played398
Goals scored1,047 (2.63 per match)
Top goalscorerRaúl Paredes
(25 goals)

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.