Astroblepus taczanowskii is a species of freshwater ray-finned fish belonging to the family Astroblepidae, the climbing catfishes. This catfish is found in South America where it occurs in the Amazon basin of Peru. This species attains a maximum standard length of .
The specific name, taczanowskii, honors the Polish zoologist Wà Âadysà Âaw (or Ladislas) Taczanowski, who provided the holotype of this species as part of an exchange of specimens between the British Museum (Natural History) and the Warsaw University Museum.