似鸵龙属（属名：Struthiomimus）是种类似鸵鸟的长腿恐龙，属于兽脚亚目似鸟龙下目，牠们生存于晚白垩纪的加拿大亚伯达省，约7600万到7000万年前。似鸵龙的属名衍化自希腊文，strouthion（στρουθιον）意为「鸵鸟」，mimos（μιμος）意为「模仿」或「模仿者」；而种名altus在拉丁语意为「高耸的」或「高尚的」。

似鸵龙是种二足动物，身长约4.3公尺，臀部高度为1.4公尺，重量约150公斤。似鸵龙是省立恐龙公园中最常见的小型恐龙之一；似鸵龙的繁盛显示牠们应为草食性或杂食性，而非肉食性。

Struthiomimus (meaning "ostrich mimic", from the Greek στρούθειος/stroutheios meaning "of the ostrich" and μῖμος/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 genus Struthiomimus currently contains three species. The most well-known 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.