| Acronym | Definition |
|---|
| INF | Interface |
| INF | Information (File Name Extension) |
| INF | Infinity |
| INF | Interference |
| INF | Infantry |
| INF | Infiltration |
| INF | Infimum (greatest lower bound) |
| INF | Iron Fists (Delta Force Squadron) |
| INF | Intermediate-Range Nuclear Forces |
| INF | Interferon |
| INF | Irradiated Nuclear Fuel |
| INF | Item Not Found |
| INF | Infinitive (linguistics) |
| INF | International Nepal Fellowship (est. 1952) |
| INF | International Naturist Federation |
| INF | Immediate Needs Funding |
| INF | Information Uber Steuer und Wirtschaft (German: Information about Tax and Business) |
| INF | International Nudist Federation |
| INF | If-Then-Else Normal Form |
| INF | Industry Negative File |
| INF | Inland Navigation Facility |