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

Lumpenopsis was first proposed as a monospecific genus in 1916 by the Russian zoologist Vladimir Soldatov when he described Lumpenopsis pavlenkoi from Peter the Great Bay on the Sea of Japan, which was its only species and which Soldatov also designated as its type species.

[1] Lumpenopsis means "similar in appearance to Lumpenus, although this genus has some differs by having teeth on the vomer, lower dorsal fin spines and in the gill membranes not being joined to the isthmus.

[5] They are small fishes, the largest species being L. triocellata which s a maximum published standard length of 11 cm (4.3 in).

[4] Lumpenopsis pricklebacks are found in the eastern and western parts of the North Pacific Ocean.