Ignacio Gregorio Comonfort de los Ríos (Spanish pronunciation: [iɣˈnasjo komoɱˈfoɾ ðe loz ˈri.os]; 12 March 1812 – 13 November 1863), known as Ignacio Comonfort, was a Mexican politician and soldier who was also president during one of the most eventful periods in 19th century Mexican history: La Reforma. Comonfort returned to the country in 1862 to fight against the Second French Intervention in Mexico but was killed in action on 13 November 1863.