Austrocheirus is an extinct genus of theropod dinosaur, possibly a neoceratosaurian, which existed during the late Cretaceous period. It was named and described by MartÃn Ezcurra, Federico Agnolin and Fernando Novas in 2010. It contains the type species Austrocheirus isasii. The generic name means "southern hand". The specific epithet honours discoverer and preparator Marcelo Pablo Isasi. In 2016, its length was estimated to be 5.5 metres (18 ft).