Harttia carvalhoi is a species of armored catfish endemic to Brazil where it is found in the Paraíba do Sul drainage basin.

This species grows to a length of 7.1 centimetres (2.8 in) SL.

The fish is named in honor of Brazilian ichthyologist-herpetologist Antenor Leitão de Carvalho (1910-1985), who collected the type specimen.

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