South Western Railway (disambiguation)
- Clinchfield Railroad
- Glasgow and South Western Railway
- London and South Western Railway
- South West Main Line
- South West Rail Link
- South West Trains
- South Western Railway
- South Western Railway (2017-2025)
- South Western Railway (South Africa)
- South Western Railway zone
- South Western Railway, Western Australia
- South Western railway line, Queensland
- Southwestern Railroad (Kentucky)
- Southwestern Railroad (New Mexico)
- Southwestern Railroad (Tennessee)
- Southwestern Railways