GTB
GTB may refer to:
- Grand Traverse Band of Ottawa and Chippewa Indians
- A music group from East Africa founded by gtbemzee and Mightytrevon [Glad To Be]
- Gran Turismo Berlinetta, Ferrari car models
- Global Trust Bank (India)
- Goolpur Talbani railway station (Pakistan)
- Textile and Clothing Union (Gewerkschaft Textil-Bekleidung), a former German trade union
- GTB (advertising agency), Dearborn, Michigan, US
- Wheeler-Sack Army Airfield, Fort Drum, New York, US, FAA LID
- BT (musician), alias
- Grand Theft Bus, a Canadian indie rock band
- Google Toolbar
- GTB Standard Time, an alternative name for Eastern European Time (used in Greece, Turkey, Bulgaria)
- Guru Tegh Bahadur, ninth Sikh guru from 1665 to 1675
- GTB Nagar, Delhi, India
- GTB Nagar railway station, Koliwada, Mumbai, India
- GTB Nagar monorail station, Koliwada, Mumbai, India
- Drain Gang, Formerly known as Gravity Boys, stylized as “GTB”