HTAi
| Acronym | Definition |
|---|---|
| HTAi | Health Technology Assessment International (conference) |
| HTAi | Hufana Traditional Arnis International (martial arts) |
| HTAi | Hellenic Traditional Arts Institute (Greek folk dancing organization; San Jose, CA) |
| HTAi | Hypomaturation Type of Amelogenesis Imperfecta (dentistry) |