Alnashetri is an extinct genus of alvarezsauroid coelurosaurian theropod dinosaur known from the early Late Cretaceous (Cenomanian stage) of La Buitrera, Río Negro Province, Argentina.
The specimen was collected at the "Hoyada de los esfenodontes" sublocality, part of the main fossiliferous locality of La Buitrera, about 30 km south of the village of El Chocόn in 2005.
It comes from the lower levels of the outcrops in this region, which produces a rich fauna of small vertebrates, including specimens of the large rhynchocephalian Priosphenodon avelesi, the basal snake Najash rionegrina, the notosuchian Araripesuchus buitreraensis, the unenlagiine dromaeosaurid Buitreraptor gonzalezorum, and also mammals and pterosaurs.
The specific name cerropoliciensis honors the nearby small village of Cerro Policía for the generous assistance from its residents in fieldwork efforts at La Buitrera locality since its discovery in 1999.
Further autapomorphy (distinctive trait) of Alnashetri is the presence of small notches extending ventrally from the collateral ligament pits at the base of the distal articular hemicondyles on phalanges III-2 and III-3.