1843 in Mexico
Events in the year 1843 in Mexico.
Incumbents
- President:
- * until March 4: Nicolás Bravo
- * March 4 – October 4: Antonio López de Santa Anna
- * starting October 4: Valentín Canalizo
Governors
- Aguascalientes: Mariano Chico Navarro
- Chiapas: Ignacio Barberena
- Chihuahua: Mariano Monterde/Mariano Martínez de Lejarza/Mariano Monterde
- Coahuila: Francisco Mejía/José Juan Sánchez Estrada
- Durango:
- Guanajuato:
- Guerrero:
- Jalisco: Mariano Paredes y Arrillaga/José María Jarero/José Antonio Mozo
- State of Mexico:
- Michoacán:
- Nuevo León: Manuel María de Llano
- Oaxaca:
- Puebla:
- Querétaro: Julián Juvera
- San Luis Potosí:
- Sinaloa:
- Sonora:
- Tabasco:
- Tamaulipas: Francisco Vital Fernandez/Jose Ignacio Gutierrez/Juan Nepomuceno Cortina
- Veracruz:
- Yucatán: Miguel Barbachano
- Zacatecas:
Events
- April 30 – May 16 – Naval Battle of Campeche: Naval Battle between the Mexican Navy versus the Texas Navy and the Yucatán Navy. The battle featured the most advanced warships of its day.
- August 23 – President Antonio López de Santa Anna announced that the annexation of Texas by the United States would be considered an act of war by Mexico.