Agustín Cosme Damián de Iturbide y Arámburu (; 27 September 178319 July 1824), commonly known as Agustín de Iturbide and later by his regnal name Agustín I, was the first Emperor of Mexico from 1822 until his abdication in 1823.

A criollo from a family of Valladolid's landed gentry, Iturbide entered the royal Spanish army in 1805 and became