Francisco Castrejón Ramírez (born 11 June 1947) is a former Mexican association football goalkeeper. He was one of three goalkeepers for Mexico in the 1970 FIFA World Cup, but did not play any games there.
|Full name||Francisco Castrejón Ramírez|
|Date of birth||June 11, 1947|
|Place of birth||Mexico|
|* Senior club appearances and goals counted for the domestic league only|
Born in Tuxpan, Jalisco, Castrejón played club football for UNAM Pumas, Club de Fútbol Laguna, Puebla F.C., Club América, Tampico, F.C. Atlas and Monarcas Morelia. He made his senior debut at age 18, appearing for Pumas in a match against Toluca on 3 February 1964.
Castrejón joined Laguna and played for the club in the 1972–73 Primera season. He signed with Puebla for the two following seasons, then joined América in 1975, where he would win the 1975–76 Mexican Primera División season title.
- Medio Tiempo - Paco Castrejón un histórico en la portería, enseña a los jóvenes
- Esquivel, Rigoberto J. (9 November 2007). "Paco Castrejón un histórico en la portería, enseña a los jóvenes" [Paco Castrejón a historic goalkeeper, teaches young people] (in Spanish). Medio Tiempo.
- Rosas, Sergio Luis (1 September 2010). "Recuerdos del Ayer" [Memories of yesterday] (in Spanish). El Siglo de Torreón.
- Reyes Padilla, Macario (2 June 2002). "Mexico - International Results Details 1960-1969". RSSSF.