Utahdactylus was a genus of extinct reptile from the Kimmeridgian-Tithonian-age Upper Jurassic Morrison Formation of Utah, United States. Based on DM 002/CEUM 32588 (an incomplete skeleton described as including a fragment of the skull, a cervical vertebra, three back vertebrae, and a caudal vertebra, ribs, a scapula, coracoid, and limb bones), Czerkas and Mickelson (2002) identified it as a "rhamphorhynchoid" pterosaur. Bennett (2007) however, concluded that it has no diagnostic features of the Pterosauria, and cannot be positively identified beyond being an indeterminate diapsid.