1846 in Mexico
# 1846 in Mexico

Events in the year 1846 in Mexico.

## Incumbents

* President – Mariano Paredes
* President – José Mariano Salas
* President – Valentín Gómez Farías

### Governors

* Aguascalientes: Felipe Nieto y del Portillo/Felipe Cosio
* Chiapas: Jerónimo Cardona
* Chihuahua:
* Coahuila: Rafael Vázquez/José María de Aguirre González/Santiago Rodríguez del Bosquea
* Durango:
* Guanajuato:
* Guerrero:
* Jalisco: Antonio Escobedo/Juan Nepomuceno Cumplido/José María Yáñez/Joaquín Angulo
* State of Mexico:
* Michoacán:
* Nuevo León:
* Oaxaca:
* Puebla:
* Querétaro: Julián Juvera
* San Luis Potosí:
* Sinaloa:
* Sonora:
* Tabasco:
* Tamaulipas: Juan Martin de la Garza Flores/Manuel Núñez Ponce/Manuel Saldaña/Francisco Vital Fernandez
* Veracruz: Manuel Gutiérrez Zamora/José de Emparán/Manuel Gutiérrez Zamora
* Yucatán:
* Zacatecas:

## Events

* April 25 – Mexican–American War: Open conflict begins over border disputes of Texas' boundaries.
* May 8 – Mexican–American War – Battle of Palo Alto: Zachary Taylor defeats a Mexican force north of the Rio Grande at Palo Alto, Texas in the first major battle of the war.
* May 9 – Mexican–American War – Battle of Resaca de la Palma in Brownsville, Texas
* May 13 – Mexican–American War: The United States declares war on Mexico.
* June 10 – Mexican–American War: The California Republic declares independence from Mexico.
* June 14 – Bear Flag Revolt: American settlers in Sonoma, California start a rebellion against Mexico and proclaim the California Republic.
* July 7 – Acting on instructions from Washington, DC, Commodore
* August 6 – José Mariano Salas assumed the presidency as provisional president.
* August 22 – President José Mariano Salas decreed the Mexican Constitution of 1824 in effect again.
* September 21-24 – Battle of Monterrey
