Events in the year 1848 in Mexico.

• President – Pedro María de Anaya
• President – Manuel de la Peña y Peña
• President – José Joaquín de Herrera

• Aguascalientes: Felipe Cosio
• Chiapas: Manuel María Parada/Jerónimo Cardona/Ponciano Solórzano del Barco/Fernando Nicolás Maldonado
• Chihuahua:
• Coahuila: Eduardo González Laso
• Durango:
• Guanajuato:
• Guerrero:
• Jalisco:
• State of Mexico:
• Michoacán:
• Nuevo León: José María Parás
• Oaxaca:
• Puebla:
• Querétaro: Francisco de Paula Mesa
• San Luis Potosí:
• Sinaloa:
• Sonora:
• Tabasco:
• Tamaulipas: Jesús de Cárdenas
• Veracruz: Manuel Gutiérrez Zamora/José de Emparán/Manuel Gutiérrez Zamora
• Yucatán:
• Zacatecas:

• January 6 – Mexican General Antonio Gaona and his son are captured at the Battle of (sic)Napoluca (Nopalucan).^[1]
• January 22 to February 14 – A failed Mexican siege of Siege of San José del Cabo
• February 2 – Mexican–American War: The Treaty of Guadalupe Hidalgo is signed, ending the war and ceding to the United States virtually all of what is today the southwest of that country.
• March 16 – Battle of Santa Cruz de Rosales in Chihuahua
• March 31 – Lt. Col. Henry Stanton Burton defeated Mexican forces in Baja California Sur
• May 30 – Treaty of Guadalupe Hidalgo have effect with the United States
• Peralta massacre

• January 26 – Justo Sierra (writer)