|Named By:||Henry Fairfield Osborn in 1917|
|Time Period:||Late Cretaceous, 77 Ma|
|Location:||Canada, Alberta - Dinosaur Park Formation and Horseshoe Canyon Formation. USA - Hell Creek Formation|
|Size:||4.3 meters long, 1.4 meters high at the hip|
|Diet:||Uncertain but possibly an omnivore|
|Classification:||| Chordata | Reptilia | Dinosauria | Saurischia | Theropoda | Ornithomimidae ||
|Also known as:||| Ornithomimus altus | Ornithomimus sedens ||
Struthiomimus (meaning "ostrich mimic", from the Greek stroutheios/stroutheios meaning "of the ostrich" and mimos/mimos meaning "mimic" or "imitator") is a genus of ornithomimid dinosaurs from the late Cretaceous of North America. Ornithomimids were long-legged, bipedal, ostrich-like dinosaurs with toothless beaks. The type species, Struthiomimus altus, is one of the more common small dinosaurs found in Dinosaur Provincial Park; its abundance suggests that these animals were herbivores or omnivores rather than pure carnivores.