The EMD SW1000 is a model of 4-axle diesel switcher locomotives built by General Motors Electro-Motive Division between June 1966 and October 1972.

This locomotive was built on the same common frame as the EMD SW1500, giving it an overall length of 44 feet 8 inches (13.61 m).

[1] The SW1000 was taller than previous EMD switchers, which posed a problem for industrial customers: at many facilities, tight clearances existed, and the SW1000 exceeded them.

[1] A total of 114 EMD SW1000s were built for railroads and industrial operations in the United States.

[2] Around August 2022, the Oregon Rail Heritage Center acquired former BNSF SW1000 #3613 (former BN #388).