G Train could refer to:

Railway

  • G-Train (Korail), a South Korean tourist train also known as the West Gold Train
  • G-series trains, a service category of high-speed trains in China
  • 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