HYA
| Acronym | Definition |
|---|---|
| HYA | Hyaluronic Acid |
| HYA | Handicapped Young Adults (St. Petersburg, FL) |
| HYA | Hyannis, MA, USA - Barnstable County (Airport Code) |
| HYA | Histocompatibility Y Antigen |
| HYA | Hazard, Young, Attea & Associates, Ltd. (Glenview, IL) |
| HYA | Homeless Youth Alliance (San Francisco, CA) |