外展神经(abducent nerve)，又译外旋神经，是十二对脑神经中的第六对，编号为VI。支配外直肌，使眼球向外瞄准。是一条纯粹的运动神经。

The abducens nerve or abducent nerve (the sixth cranial nerve, also called the sixth nerve or simply CNVI) is a somatic efferent nerve that, in humans, controls the movement of a single muscle, the lateral rectus muscle of the eye.