Rhadinoloricaria is a genus of catfish endemic to South America. It was considered to be monotypic until the 2020 discovery of a second species.

Rhadinoloricaria is part of the Pseudohemiodon group of the tribe Loricariini in the subfamily Loricariinae. Apistoloricaria and Crossoloricaria include fish that are very similar to Rhadinoloricaria, and it has been proposed that the former two genera be synonymized with the latter.

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