GBTB Views 6 meanings found GBTB spans banking, tourism and cultural events, most notably G B and T Bancshares, Singapore’s Gardens by the Bay, and the Great British Tea Break. Miscellaneous Givry Boxe Thai Boran Groninger Bedrijfs Tafeltennis Bond Good Boy Tom Boy Community Gardens by the Bay Regional Great British Tea Break Business G B and T Bancshares, Inc.