戈壁兽（Gobiatherium）是犹因他兽科的一类，生存于始新世中期的蒙古。牠不像北美洲的犹因他兽或始王兽般有顿角或獠牙，相反牠有很大的额骨及接近球状的吻部。

由于戈壁兽缺乏犹因他兽科的大部份特征，故牠被分类在自己的戈壁兽亚科中，而一些学者更将之提升为戈壁兽科。

Gobiatherium (meaning "Beast of the Gobi Desert") was one of the last Uintatheres, from the Mid Eocene of Mongolia. Unlike its North American cousins, Uintatherium or Eobasileus, Gobiatherium lacked knob-like horns, or even fang-like tusks. Instead, it had enlarged cheekbones and an almost spherical snout.