客货混编列车，就是把铁路客车及货车混合编组的列车。在铁路发明初期，这种编组方式颇为流行，及至20世纪开始式微，主要是因为货运列车速度慢，因此这种列车现今仅可在一些铁路支在线找到。

A mixed train is a train that hauls both passenger and freight cars or wagons. In the early days of railways they were quite common, but by the 20th century they were largely confined to branch lines with little traffic. Because mixed trains involve the shunting of goods wagons at stations along the way, they provide passengers with a very slow service, and have largely disappeared today. Their use is also at variance with the separation of passenger and goods services into different subsidiaries by most modern railway administrations.