| Blas Chumacero | |
| Office: | President of the Chamber of Deputies |
| Term Start: | 1 November 1985 |
| Term End: | 30 November 1985 |
| Predecessor: | Beatriz Elena Paredes Rangel |
| Successor: | Fernando Ortíz Arana |
| Term Start2: | 1 November 1940 |
| Term End2: | 30 November 1940 |
| Predecessor2: | Ernesto Gallardo Sánchez |
| Successor2: | Jesús U. Molina |
| Office3: | President of the Senate |
| Term Start3: | 1 December 1981 |
| Term End3: | 31 August 1982 |
| Predecessor3: | Ángel Ventura Valle |
| Successor3: | Miguel González Avelar |
| Office4: | Senator for Puebla |
| Term Start4: | 1 September 1988 |
| Term End4: | 31 October 1994 |
| Predecessor4: | Alfonso Zegbe Sanen |
| Successor4: | Melquiades Morales |
| Term Start5: | 1 September 1976 |
| Term End5: | 31 August 1982 |
| Predecessor5: | Guadalupe López Bretón |
| Successor5: | Ángel Aceves Saucedo |
| Office6: | Member of the Chamber of Deputies for Puebla′s 1st district |
| Term Start6: | 1 September 1985 |
| Term End6: | 31 August 1988 |
| Predecessor6: | Hilda Luisa Valdemar Lima |
| Successor6: | Víctor M. Carreto y Fernández de Lara |
| Term Start7: | 1 September 1967 |
| Term End7: | 31 August 1970 |
| Predecessor7: | Melquíades Trejo Hernández |
| Successor7: | Miguel López González |
| Term Start8: | 1 September 1958 |
| Term End8: | 31 August 1961 |
| Predecessor8: | Salvador Lobato Jiménez |
| Successor8: | Francisco Márquez Ramos |
| Term Start9: | 1 September 1952 |
| Term End9: | 31 August 1955 |
| Predecessor9: | Francisco Márquez Ramos |
| Successor9: | Salvador Lobato Jiménez |
| Term Start10: | 1 September 1946 |
| Term End10: | 31 August 1949 |
| Predecessor10: | Gustavo Díaz Ordaz |
| Successor10: | Francisco Márquez Ramos |
| Term Start11: | 1 September 1940 |
| Term End11: | 31 August 1943 |
| Predecessor11: | Juan Salamanca V. |
| Successor11: | Gustavo Díaz Ordaz |
| Birth Date: | 1905 1, df=yes |
| Birth Place: | Puebla, Puebla, Mexico |
| Death Place: | Mexico City, D.F., Mexico |
| Occupation: | Politician |
Blas Chumacero Sánchez (January 18, 1905 in Puebla – July 12, 1997 in Mexico City) was a Mexican trade union leader and interim secretary general of the Confederation of Mexican Workers after Fidel Velásquez' death.
Chumacero Sánchez was the son of Zenón Chumacero Bueno and Josefa Sánchez Serrano. A high school dropout textile worker, he became a founding member of the General Confederation of Workers and Farmers of Mexico (CGOCM) in 1920 and a founding member of the Revolutionary Institutional Party (formerly, PNR). In 1936 he became a founding delegate of the Worker's Confederation of Mexico (CTM) and three years later he founded the Workers' Federation of Puebla, in which he served as secretary general for over 45 years.
Because of the strong (and usually coercive) ties between the Mexican labor movement and the government endorsed Revolutionary Institutional Party during most of the 20th century, Chumacero was elected once to the Congress of Puebla, six times to the Chamber of Deputies and twice to the Mexican senate; for a total of 33 years serving as legislator.
He was married to Aurelia Corona and adopted two siblings: Jaime and Rebeca Chumacero Lucio.
Source: Diccionario biográfico del gobierno mexicano, Ed. Fondo de Cultura Económica, Mexico, 1992.