Ctenochelys (meaning "comb tortoise") is an extinct genus of marine turtle (Cryptodira, Pancheloniidae), which existed during the Cretaceous period, and lived in the shallow waters of the Western Interior Seaway.

[1] Its fossils have been found in the Ripley Formation and Mooreville Chalk of central Alabama, United States.

It was originally thought to be a species of Toxochelys; T. bauri, until Sternberg declared it a separate genus.

[1] Ctenochelys acris was first named by Zangerl in 1953 and is now thought to be one of the earliest ancestors of modern cheloniids.

[6] Ctenochelys in a cladogram from the analysis of Gentry et al., 2019:[7] †Angolachelonia †Protostegidae †Toxochelys latiremis Chelonioidea †Asmodochelys parhami †Prionochelys matutina †Ctenochelys acris †Ctenochelys stenoporus †Peritresius ornatus †Peritresius martini