Erythrovenator is a genus of basal theropod dinosaurs from the Late Triassic of Rio Grande so Sul, Brazil. It contains a single species, Erythrovenator jacuiensis. The genus name translates to "red hunter", in reference to the red color of its fossil, while the specific name references a nearby river, Rio Jacuí. Erythrovenator is one of the earliest known theropods, hailing from the early Norian (or possible late Carnian) Niemeyer Site of the Candelária Sequence in the Santa Maria Supersequence. No other dinosauromorphs are known from this site, which is dominated by the traversodontid cynodont Siriusgnathus. The site probably corresponds to the Riograndia Assemblage Zone based on the presence of Siriusgnathus.