ISFL
| Acronym | Definition |
|---|---|
| ISFL | International Society of Family Law |
| ISFL | International Symposium on Fuels and Lubricants (India) |
| ISFL | Ipswich Sunday Football League (UK) |
| ISFL | International Symposium on Fuzzy Logic |
| ISFL | Intensive School of French Language (Cuneiforme Institute; France) |
| ISFL | Interessengemeinschaft Schweizerischer Foto Lieferanten (German: Swiss Imaging Manufacturers Association; Switzerland) |