The British Rail Class 334 is a suburban electric multiple-unit train built by Alstom in Birmingham. They are part of the Juniper family of trains along with Classes 458 and 460. The trains are operated by Abellio ScotRail on their Helensburgh/Milngavie/Balloch-Edinburgh via Bathgate and Dalmuir-Cumbernauld/Lanark/Larkhall routes. They were built for SPT/ScotRail (when part of National Express) outer-suburban services in Glasgow.