Pseudochaenichthys is a monotypic genus of marine ray-finned fish belonging to the family Channichthyidae, the crocodile icefishes.

Its only member is Pseudochaenichthys georgianus, the South Georgia icefish, which is found in the Southern Ocean.

[3] Pseudochaenichthys, the South Georgia icefish, is a dark greyish-green species with blackish first dorsal and pelvic fins.

This species is a synchronous spawner and spawning takes place in autumn, with the eggs hatching from August to October.

[4] Pseudochaenichthys georgianus is of minor importance to commercial fisheries, being a regular bycatch species in trawls.