Teuthowenia is a genus of glass squid in the subfamily Taoniinae.

Members of this genus are characterized by their deep-sea habitat, clear bodies, and ability to engorge themselves with water to become larger when threatened.

Each known species has a visible digestive gland, which serves a similar purpose as a stomach and liver.

The genus contains bioluminescent species.

[2] It includes three species:[3] This squid-related article is a stub.