树鼩目（学名：Scandentia），又称攀兽目，生活在东南亚的热带雨林中，有2科5属20种。树鼩目成员的外形像松鼠，但吻尖而长。树鼩目成员的齿分化不明显。

树鼩目曾经被置于食虫目与灵长目，树鼩目成员的习性和外形有食虫目的特征，但其头骨的特征与某些原始的原猴类相似，因此科学家曾对于树鼩目该被置于食虫目还是灵长目有不少争议。后来食虫目被发现是一个多系群，其成员陆续独立出来或被分置于其它目，食虫目因而被取消了。树鼦目则依分子学研究而被置于灵长总目之下的灵长动物分支，成为皮翼目和灵长目的近缘旁系群。

The treeshrews (or tree shrews or banxrings) are small mammals native to the tropical forests of Southeast Asia. They make up the families Tupaiidae, the treeshrews, and Ptilocercidae, the pen-tailed treeshrew, and the entire order Scandentia. The 20 species are placed in five genera. Treeshrews have a higher brain to body mass ratio than any other mammals, including humans, but high ratios are not uncommon for animals weighing less than a kilogram.