G Train
G Train could refer to:
Railway
- G-Train (Korail), a South Korean tourist train also known as the West Gold Train
- G (New York City Subway service), a rapid transit service in New York, United States
- G series (Toronto subway), retired rapid transit cars used in Toronto, Canada
- G scale, a size of model railroading ranging from 1:19 to 1:32
People
- the nickname of Fraser Gehrig, former St Kilda Australian rules footballer
- the nickname of Caitlin Greiser, St Kilda Australian rules footballer