Trachyteuthis is a genus of extinct octopodiform cephalopods, comprising six species: T. hastiformis, T. latipinnis, T. nusplingensis, T. teudopsiformis,[2] T. covacevichi[3] and T.

Though often assigned to the order Vampyromorphida, the discovery of fossilised Trachyteuthis beaks in the Upper Jurassic limestone of Germany suggests a close phylogenetic relation to the Octopoda.

[3] First described in 1773 as the remnants of a fish, Trachyteuthis was considered comparable to a Sepia cuttlebone by Rüppell in 1829.

[2] English material discovered in 1855 was termed Coccoteuthis latipinnis; this was later synonymised with the identical Solnhofen deposits.

A 2007 survey of museum collection established that there were ground for the erection of three species within the genus.