Botucaraitherium is an extinct genus of prozostrodontian cynodonts from the early Norian Riograndia Assemblage Zone in the Candelária Formation of the Paraná Basin in southeastern Brazil.

[1] It is known from a single type species, Botucaraitherium belarminoi.

The genus name is derived from the Botucaraí Hill, which dominates the landscape of Candelária, Rio Grande do Sul.

The species epithet honors Belarmino Stefanello, a volunteer at the Museu Municipal Aristides Carlos Rodrigues, who found the fossil.

[2] Botucaraitherium in a cladogram after Stefanello et al. (2023):[3] Lumkuia Chiniquodon Probainognathidae Ecteniniidae Protheriodon Prozostrodon Pseudotherium Therioherpeton Irajatherium Riograndia Diarthrognathus Pachygenelus Tritylodontidae Botucaraitherium Brasilodon Mammaliaformes