- ADNA stands for Advocacy Network for Africa
- ADNA stands for Atlanta Downtown Neighborhood Association (Atlanta, GA)
- ADNA stands for Auburn District Nursing Association (est. 1919; Auburn, MA)
- ADNA stands for About Domain Name Appraisals
- ADNA stands for Australian Domain Name Authority
- aDNA stands for Ancient Deoxyribonucleic Acid
ADNA