Caecobarbus is a monospecific genus of freshwater ray-finned fish belonging to the family Cyprinidae. which includes the carps, barbs and related fishes. The only species in the genus is Caecobarbus geertsi, the African blind barb or Congo blind barb (known as Nzonzi a mpofo in the local Kikongo language, meaning "blind barb"). This threatened cavefish is only known from Democratic Republic of the Congo, George Albert Boulenger described this fish in 1921 and it apparently lacks any close relatives in the Congo region.

Despite its common name, "African blind barb", other blind cave cyprinids are indigenous to Africa, notably the Somalian Barbopsis devecchi and Phreatichthys andruzzii.

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