GBT may refer to:
Transport Gambat railway station, in Pakistan Gorgan Airport, in Iran Gotthard Base Tunnel, in Switzerland Greater Bridgeport Transit Authority, in Connecticut
Other uses
Gelora Bung Tomo Stadium, in Surabaya, Indonesia Generalised beam theory, in structural engineering Global Bio-Chem, a Hong Kong biotechnology company Amex GBT, a multinational travel management company Government and binding theory, in linguistics Green Bank Telescope, in West Virginia G-TELP Business Test, English language test Gwinnett Ballet Theatre, in Lawrenceville, Georgia, United States