Wikipedia
NSAI
NSAI may refer to:
- Nashville Songwriters Association International, songwriting preservation and education society
- National Spatial Address Infrastructure, a United Kingdom government initiative
- National Standards Authority of Ireland, the ISO member body for the Republic of Ireland
- Non-steroidal anti-inflammatory drug, a group of analgesic drugs
- Non-steroidal aromatase inhibitor, a class of drugs used in treatment of breast cancer