Jach'a Ch'apini (Aymara jach'a big, ch'api thorn, -ni a suffix, "the big one with thorns", also spelled Jachcha Chapini) is a mountain in the Bolivian Andes which reaches a height of approximately . It is located in the La Paz Department, Loayza Province, Luribay Municipality. Jach'a Ch'apini lies at the Luribay River, southwest of Jach'a Qullu and northwest of Ch'apini.
References Bolivian IGM map 1:50,000 Luribay 6042-I