GTBA
| Acronym | Definition |
|---|---|
| GTBA | Good to Be Alive |
| GTBA | Gas Turbine Builders Association (est. 1995; UK) |
| GTBA | Golden Triangle Baptist Association (Beaumont, TX) |
| GTBA | Graph Theory of Brian Alspach (mathematics; Canada) |
| GTBA | Gasoline-grade Tertiary Butyl Alcohol |
| GTBA | Glasgow Thai Boxing Academy (est. 2002; UK) |