大鼻龙目（Captorhinida），是早期爬行动物的双重并系群。传统上由下列几科组成：

牠们拥有共同的原始特征，并与爬行动物的祖先类似。在演化上，波罗蜥科、米勒古蜥科与无孔亚纲较为亲近，大鼻龙科、原古蜥科与双孔亚纲较为亲近。

Captorhinida is a doubly paraphyletic grouping of early reptiles. Robert L. Carroll (1988) ranked it as an order in the subclass Anapsida, composed of the following suborders:

While they all share primitive features and resemble the ancestors of all modern reptiles, some of these families are more closely related to (or belong to) the clade Parareptilia, while others are further along the line leading to diapsids. For this reason, the group is only used informally, if at all, by most modern paleontologists. All members of this group are thought to be extinct.