1963–64 Mexican Segunda División season

The season started on 29 June 1963 and concluded on 7 February 1964.

For the following season, the Primera División had an expansion from 14 to 16 teams, for which a promotion playoff was played at the end of this season.

In order to increase the number of team from 14 to 16 for the 1964–65 season the league made a playoff.

The playoff was composed of the lowest team from Primera division and the 2nd-5th teams in the standings from Segunda Division as Cruz Azul had earned automatic promotion.

All games were played in Estadio Olímpico Universitario, Mexico City.