GTDI
| Acronym | Definition |
|---|---|
| GTDI | Guidelines for Trade Data Interchange |
| GTDI | Gasoline Turbocharged Direct Injection |
| GTDI | Guidelines for Trade Data Interchange (trade data sharing rules; est. 1981) |
| GTDI | Gasoline Turbo Direct Injection |
| GTDI | Gereja Tuhan di Indonesia (Indonesian: Church of God in Indonesia) |