Curtido (Spanish pronunciation: [kuɾˈtiðo]) is a type of lightly fermented relish. It is typical in Salvadoran cuisine and that of other Central American countries. In El Salvador it is usually made with cabbage, onions, carrots, oregano, and sometimes lime juice; it resembles sauerkraut, kimchi, pikliz or tart coleslaw. It is commonly served alongside pupusas, a national specialty.

In Belize, curtido is a spicy, fermented relish made with onions, habaneros, and vinegar, and is used to top salbutes, garnaches, and other common dishes in Belizean cuisine.