Kapoxó (Capoxo, Kaposho) is an extinct Maxakalian language of Brazil. It was close to Cumanacho and Panhame, and shared many words with them.
Kapoxó is documented in a word list collected in 1818, which was published in Martius, 1863: 170-172.
Kapoxó was historically spoken on the AraçuaàRiver in Minas Gerais, Brazil. Kumanaxó and Panhame are closely related varieties.