IXV（英语：Intermediate eXperimental Vehicle，IXV；中文又译：过渡试验飞行器或太空出租车）是欧洲太空总署（ESA）所研制的迷你无人穿梭机。

IXV的目的是用于验证大气层再入技术，首次飞行试验于2015年2月11日，并于当天成功返航地球，且按计划溅落在太平洋中。IXV的成功无疑有助欧洲研制出可重复使用的穿梭机，并且有望研制出载人版本使欧洲能够进行载人航天任务，为欧洲的太空科技发展画下新的一页。

The Intermediate eXperimental Vehicle (IXV) is an European Space Agency (ESA) experimental suborbital re-entry vehicle (spaceplane prototype) to validate European reusable launchers, evaluated in the frame of the Future Launchers Preparatory Programme (FLPP), and developed under the leadership of the NGL Prime SpA company. The IXV successfully completed its 100-minute mission on 11 February 2015 being the first ever lifting body to perform full atmospheric reentry from orbital speed