Longaniza (Spanish pronunciation: [loŋɡaˈniθa], or American Spanish: [loŋɡaˈnisa]) is a Spanish sausage (embutido) similar to a chorizo and also closely associated with the Portuguese linguiça. Its defining characteristics are interpreted differently from region to region. It is popular in the cuisines of several regions of Spain, Argentina, Uruguay, Puerto Rico, Dominican Republic, El Salvador, Guatemala, Mexico and Chile.

In the Philippines, it is called longganisa and has hundreds of variants with different vernacular tastes and forms due to the 144 ethno-linguistic groups of the archipelago.