1846 in Mexico

Incumbents

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

  Governors

• Chiapas:
• Chihuahua:
• Coahuila:
• Durango:
• Guanajuato:
• Jalisco:
• State of Mexico:
• Michoacán:
• Nuevo León:
• Oaxaca:
• Puebla:
• Querétaro:
• San Luis Potosí:
• Sinaloa:
• Sonora:
• Tabasco:
• Tamaulipas:
• Veracruz:
• 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.

  Notable births