IFSR
| Acronym | Definition |
|---|---|
| IFSR | Iranian Financial Sanctions Regulations (US Treasury) |
| IFSR | International Federation for Systems Research |
| IFSR | Interpolating Force-Sensitive Resistance (electronics) |
| IFSR | Insurance Financial Strength Rating (Moody's Investors Service) |
| IFSR | International Fellowship of Scouting Rotarians (est. 1991; Rotary Club) |
| IFSR | Integrated Flight Software Requirement |
| IFSR | In-Flight Status Report |