RGW could refer to:

• Comecon; Russian - Совет экономической взаимопомощи - СЭВ
• Ramsgreave and Wilpshire railway station, England; National Rail station code RGW
• Residential gateway, a hardware device connecting a home network with a wide area network (WAN) or the internet
• Rio Grande Western Railway; AAR reporting mark RGW

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