1846 in Mexico

← 1845 1844 1843 1846 in Mexico → 1847 1848 1849
Decades:	1820s 1830s 1840s 1850s 1860s
See also:	History of Mexico List of years in Mexico Timeline of Mexican history

Events in the year 1846 in Mexico.

Incumbents

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

For the list of governors of the states of Mexico, see Category:Lists of governors of States of Mexico.

Events

Genl. Zachary Taylor at the Battle of Resaca de la Palma

• 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.

September 21–24: Battle of Monterrey (Mexican–American War).

• 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.