| Named By: | Phillip Currie, John Keith Rigby & Robert Evan Sloan in 1990 |
| Time Period: | Late Cretaceous, 76.5 Ma |
| Location: | Canada - Alberta - Judith River Formation, Horseshoe Canyon Formation and Scollard Formation. USA - Wyoming - Lance Formation, Texas - Aguja Formation, and possibly Utah - Cedar Mountain Formation |
| Size: | Unknown due to lack of fossil material |
| Diet: | Carnivore |
| Fossil(s): | Pair of mandibles (lower jaw bones) and large amounts of teeth |
| Classification: | | Chordata | Reptilia | Dinosauria | Saurischia | Theropoda | Dromaeosauridae | |
Richardoestesia is a medium-sized (~100 kg) genus of theropod dinosaur from the late Cretaceous Period of what is now North America. It currently contains two species, R. gilmorei and R. isosceles.