卧铺车，又名寝台车（日语：寝台车、朝鲜语：침대차）、卧车。是提供乘客床铺住宿的车厢，多用在长途旅行上。

中国大陆的卧铺车类型，主要分为高级软卧、软卧、硬卧三种寝车，少数列车设有每房间仅1个铺位或3铺位的一人软卧包厢（一人软包）。由于卧铺列车主要用于长途路线，如京九铁路、京广铁路、京沪铁路、成昆铁路、宝成铁路、陇海铁路、青藏铁路、兰新铁路、哈大铁路等路线，其中青藏铁路所使用的卧铺车，为了适应青藏高原上的气压变化，卧铺车也准备了氧气面罩与仿照民航机规格的加压式客舱，减少乘客在搭乘上由于气压变化带来的不适。

The sleeping car or sleeper (often wagon-lit) is a railway passenger car that can accommodate all its passengers in beds of one kind or another, primarily for the purpose of making nighttime travel more restful. The first such cars saw sporadic use on American railroads in the 1830s; they could be configured for coach seating during the day. Some of the more luxurious types have private rooms (fully and solidly enclosed rooms that are not shared with strangers).