Bororo of Cabaçal (Bororo do Cabaçal) is an extinct Bororoan language that was spoken around the Cabaçal River in Mato Grosso, Brazil. It has been documented in word lists collected by Johann Natterer in 1825[1] and by Francis de Castelnau in the 1840s.[2]: 285–286 Bororo of Cabaçal was recently identified by Camargo (2014) as a separate language distinct from Bororo proper.[3]