Gilmoremys is an extinct genus of softshell turtle which lived during the late Cretaceous (Maastrichtian stage) of North Dakota, Montana and Wyoming, United States.

Many additional specimens were later discovered including cranial remains, and the material was assigned to its own genus, Gilmoremys.

It was first named by Walter G. Joyce and Tyler R. Lyson in 2011 and the type species is Gilmoremys lancensis.

Detailed analysis reveals that the new skulls and shell fragments correspond with changes in overall form representing an ontogenetic shift towards the adult morphology of this species.

[3] Cladogram after Joyce & Lyson, 2011:[1] Trionychinae Cyclanorbinae Gilmoremys Plastomenus H. rememdium H. arctochelys H. tetanetron H. sterea