- AFSI stands for AmTrust Financial Services, Inc (New York, NY casualty insurer)
- AFSI stands for Americans for a Safe Israel
- AFSI stands for Amphenol Fiber Systems International
- AFSI stands for Asthma-Friendly Schools Initiative
- AFSI stands for All Faiths Seminary International (New York)
- AFSI stands for American Food Safety Institute
- AFSI stands for American Feng Shui Institute
- AFSI stands for Africa Food Security Initiative
- AFSI stands for Australian Foundation for Studies in Italy
- AFSI stands for Advanced Filtration Systems Inc
- AFSI stands for Associate, Financial Services Institute
- AFSI stands for Age at First Sexual Intercourse
- AFSI stands for Aviation Fire & Security International
- AFSI stands for Abstract Font Service Interface
- AFSI stands for Audible Field Strength Indicator
- AFSI stands for Alternate Food Stamp Issuance
- AFSI stands for Automated Food System Inc
- AFSI stands for Analog Fixed Station Interface
- AFSI stands for Absolute Financial Services, Inc (Odessa, FL)
AFSI