Ostenoteuthidae is an extinct family of cephalopods from Lower Jurassic of Italy.

They had ten arms with unusual structure.

[1] The type locality for up to date known two species is near village Osteno, Lake Lugano, Province of Como, northern Italy.

[1] Eight specimens from this family are stored in Museo Civico di Storia Naturale di Milano in Milan, Italy.

This prehistoric cephalopod-related article is a stub.