Kasatkia is a genus of marine ray-finned fishes belonging to the family Stichaeidae, the pricklebacks or shannies.

Kasatkia was first proposed as a monospecific genus in 1916 by the Russian zoologists Vladimir Soldatov and Mikhail Nikolaevich Pavlenko when the described Kasatkia memorabilis from south of Cape Gamov in the Sea of Japan.

[1] Kasatkia is considered to be closely related to Askoldia.

[4] Kasatkia means belonging to Kasatka, the name of the vessel that Soldatov and Pavlenko used to carry out studies on the salmon of the Amur River.

[1] They are demersal fishes found in coastal waters at depths down to 26 m (85 ft).