1812 in Spain

Incumbents

 * Monarch: Joseph I

Events

 * January 7–20 - Siege of Ciudad Rodrigo (1812)
 * March 16-April 6 - Siege of Badajoz (1812)
 * March 19 - ratification of the Spanish Constitution of 1812
 * April 9 - Battle of Arlabán (1812)
 * June 29-August 19 - Siege of Astorga (1812)
 * July 22 - Battle of Salamanca
 * October 25–29 - Battle of Tordesillas (1812)

Births

 * April 23 - Alejandro de Castro y Casal

Deaths

 * July 4 - Infante Pedro Carlos of Spain and Portugal