Glanidium ribeiroi is a species of driftwood catfish in the family Auchenipteridae. It is found in the Iguaçu River basin in South America.
Glanidium ribeiroi reaches a standard length of .
The catfish is named in honor of Brazilian ichthyologist-herpetologist AlÃÂpio de Miranda Ribeiro (1874-1939), who was Secretary of the National Museum in Rio de Janeiro.