Rhinolekos britskii[1] is a species of catfish in the family Loricariidae. It is native to South America, where it occurs in the Paranaíba River basin in the upper Paraná River system in Brazil. The species reaches 4 cm (1.6 inches) in standard length. Its specific name, britskii, honors Heraldo A. Britski of the University of São Paulo for his contributions to the ichthyology of the Neotropical realm.[2]