| Named By: | J. F. Bonaparte, C. L. Schultz, M. B. Soares & A. G. Martinelli in 2010 |
| Time Period: | Late Triassic, Carnian-Norian |
| Location: | Brazil - Caturrita Formation |
| Size: | Uncertain due to lack of fossil remains |
| Diet: | Insectivore |
| Fossil(s): | Partial dentary (lower jaw bone) |
| Classification: | | Chordata | Reptilia | Diapsida | Lepidosauromorpha | Lepidosauria | |
Cargninia is an extinct genus of basal lepidosaur from the Late Triassic period. It lived during the late Triassic period (Carnian to Norian stage) in what is now Faxinal do Soturno, Rio Grande do Sul, southern Brazil, in the geopark Paleorrota. It is known from the holotype UFRGS PV 1027 T, a partial dentary, recovered from the middle section of the Caturrita Formation. Cargninia was named by Jose Fernando Bonaparte, Cesar Leandro Schultz, Marina Bento Soares and Agustin G. Martinelli in 2010 and the type species is Cargninia enigmatica. The generic name honors Daniel Cargnin priest, a Brazilian fossil collector, and the specific name means "enigmatic" in reference to the basal position within the Lepidosauria.