1984–85 Mexican Segunda División season

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.

Changes

 * Zacatepec was promoted to Primera División.
 * Unión de Curtidores was relegated from Primera División.
 * Santos Laguna and UAQ were promoted from Segunda División B.
 * San Mateo Atenco was promoted from Tercera División.
 * La Piedad, UABJ Oaxaca and SUOO were relegated from Segunda División.

During the season

 * After Week 8, Veracruz was sold to new owners, the team was relocated at Mérida, Yucatán and renamed as Yucatán.

Results
First leg

Second leg

Results
First leg

Second leg