FGW may refer to:

• Fishguard & Goodwick railway station, in Wales
• First Great Western, now Great Western Railway, a British train operating company
• Flexural gravity wave

• Regional Radio Sports Network
• Regional Rail, LLC
• Regional rail transit
• Regional Railway Museum (Chennai)
• Regional rate
• Regional rates
• Regional Relay Facility Opana
• Regional Religious System
• Regional Renewable Energy Procurement Project
• Regional Representative Council (Indonesia)
• Regional Research Institute
• Regional Research Laboratory, Bhopal
• Regional Research Station
• Regional Reserve (Australia)
• Regional Ring Road
• Regional road
• Regional Road 174
• Regional road (Italy)
• Regional Roads in South Africa
• Regional Routes of South Africa
• Regional route (South Africa)
• Regional Routes (South Africa)
• Regional Scale Nodes
• Regional School District 16 (Connecticut)
• Regional School District 3