Thrissops (from Greek: θρῐ́ξ thrix, 'hair' and Greek: ὄψις ópsis 'look')[1] is an extinct genus of stem-teleost fish from the Jurassic period (Kimmeridgian to Tithonian).

[2] Its fossils are known from the Solnhofen Limestone,[3] as well as the Kimmeridge Clay.

[4] It had a streamlined body with a deeply cleft tail and only very small pelvic fins.

Thrissops was one of the smaller members of the order Ichthyodectiformes, which also included larger representatives like Xiphactinus and Saurodon.

This article about a prehistoric ray-finned fish is a stub.