Baronia brevicornis, commonly known as the short-horned baronia, is a species of butterfly in the family Papilionidae. It is monotypic within the genus Baronia. It is endemic to a very small area of Mexico, where the distribution is patchy and restricted. The genus is named after a Mr Baron who collected the first specimen in the Sierra Madre region of Mexico. The species was then described by Salvin. Morphological characteristics include an abdominal scent organ in females.