安氏中兽（Andrewsarchus），又名安氏中爪兽或安氏兽，是一种原始、身体粗壮及像鬣狗的有蹄类哺乳动物，生存于4500-3600万年前的始新世。牠的四肢很短，而身体很长，有长的尾巴，脚上有蹄。牠的鼻端很长，有锋利的牙齿及扁平的颊齿，可以用来咬碎骨头。不过由于只有头颅骨被发现，故究竟安氏中兽是掠食者，或是食腐肉的则不清楚。

安氏中兽是以著名的化石发掘者罗伊·查普曼·安德鲁斯（Roy Chapman Andrews）来命名。安氏中兽的化石是于1923年6月在蒙古戈壁沙漠曼汗发现，这个没有下颌骨的头颅骨现在存放在美国自然历史博物馆。基于牙齿及头颅骨的相似性，牠被分类在中爪兽目中。据此估计牠像中爪兽或中国中兽般是有蹄的，并且是偶蹄目的亲属。

Andrewsarchus (/ˌændruːˈsɑːrkəs/) is an extinct genus of mammal that lived during the middle Eocene epoch in what is now Inner Mongolia, China. Only one species is usually recognized, A. mongoliensis, known from a single skull of great size discovered in 1923 during the expeditions of central Asia by the AMNH. Generally classified as a mesonychid since its original description, most recent studies recover it as an artiodactyl, in one study specifically, as a member of the clade Cetacodontamorpha, closely related to entelodonts, hippos and whales.