Cecina manchurica is a species of sea snail that has a gill and an operculum, a marine gastropod mollusk in the family Pomatiopsidae.

[2] The specific name manchurica refers to Manchuria, the historical region where its type locality was situated.

This is an Endangered species (type I, CR+EN) in Japan.

[3] The type locality is "Olga and Vladimir Bays, Manchuria, under damp logs near the sea",[1] today in Primorsky Krai, Russia.

This species lives in very shallow water in littoral habitats, including decaying seaweed stranded on the beach.