Southwestern Railroad could refer to:
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Southwestern Railroad (Georgia), predecessor of the Central of Georgia Railway
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Southwestern Railroad (Kentucky), predecessor of the Southern Railway (1876-1889)
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Southwestern Railroad (New Mexico)
The Southwestern Railroad is a Class III railroad operating since 1990, and until 2017 consisted of two unconnected railroad sections in New Mexico, with no shared functions. These and a third section in the Texas panhandle and Oklahoma, now clos ...
, presently operating
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Southwestern Railroad (Tennessee)
The Southwestern Railroad started a gauge spur line from Sparta, Tennessee to McMinnville, Tennessee to connect with the McMinnville and Manchester Railroad.
The Southwestern Railroad Company was chartered in 1851–52 to build a railroad from D ...
, predecessor of the Nashville, Chattanooga and St. Louis Railway (1852-1877)
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