List of Amtrak rolling stock

Amtrak operates a fleet of 2,142 railway cars and 425 locomotives for revenue service and railroad operations, collectively referred to as its rolling stock. Notable examples include the GE Genesis and Siemens Charger diesel locomotives, the Siemens ACS-64 electric locomotive, the Amfleet and Viewliner series of single-level passenger cars, the Superliner series of double-decker passenger cars, and 20 Acela Express high-speed trainsets. In addition, Amtrak operates 196 locomotives and railcars that are wholly owned by its state partners.

The railroad is currently undertaking a fleet replacement effort, spending $2.4 billion on 28 NextGen Acela (Avelia Liberty) trainsets for its flagship Acela service and $7.3 billion for 65 Airo trainsets for other Northeast Corridor services. Separately, California and a consortium of Midwestern states have purchased Siemens Venture trainsets for use on Amtrak-operated routes within their regions; these began entering service in 2022. In 2023, Amtrak issued a request for proposals to replace hundreds of bilevel railcars used on long-distance routes, and a similar proposal for single-level long-distance railcars was issued in 2025.