Francisco Castrejón Ramírez (born 11 June 1947) is a Mexican former professional footballer who played as a goalkeeper.

He was one of three goalkeepers for Mexico in the 1970 FIFA World Cup, but did not play any games there.

He made his senior debut at age 18, appearing for Pumas in a match against Toluca on 3 February 1964.

[2] Castrejón joined Laguna and played for the club in the 1972–73 Primera season.

This biographical article related to a Mexican association football goalkeeper is a stub.