[3] In 1969, Olea Muñoz was elected vice president of the International Union of Lawyers, a professional organization headquartered in Brussels, Belgium.

[3] He held a series of positions with Mexico's civil service and federal government, including the Mexican Cultural Institute and the Secretariat of Tourism.

[2][3] Xavier Olea Muñoz began his diplomatic career shortly after leaving office as Governor of Guerrero.

[1][3] He also served as Mexico's Ambassador to the United Kingdom, Italy, Switzerland, the former Czechoslovakia, Poland, and the former Soviet Union during his career.

[2] In 1998, Olea Muñoz was a PRD candidate for Governor of Guerrero, but lost his party's nomination to Félix Salgado Macedonio.

[3] Xavier Olea Muñoz died in the city of Taxco de Alarcón, Guerrero, on December 1, 2015, at the age of 92.