| Acronym | Definition |
|---|
| IFL | International Fight League (mixed martial arts) |
| IFL | Indoor Football League |
| IFL | Institute for Learning (various locations) |
| IFL | In for Later |
| IFL | Implementation and Application of Functional Languages (Symposium) |
| IFL | Israel Football League |
| IFL | Irinotecan, Fluorouracil, and Leucovorin (cancer treatment) |
| IFL | Insight for Living |
| IFL | Inter Facility Link |
| IFL | Image File List |
| IFL | Integrated Facility for Linux (IBM) |
| IFL | Interest Free Loan |
| IFL | Intense Football League |
| IFL | Institute of Foreign Languages (Phnom Penh, Cambodia) |
| IFL | Interfacility Link (satellites) |
| IFL | I'm Feeling Lucky (Google) |
| IFL | Independent Flair League |
| IFL | Institute for Leaders |
| IFL | Image File List (sequencing) |
| IFL | International Friendship League |
| IFL | Ironman Football League (est. 1996) |
| IFL | Image Format Library (software) |
| IFL | Integrated Facilities for Linux |
| IFL | International Frequency List |
| IFL | Irish Football League |
| IFL | Internet Football League |
| IFL | leukocyte interferon |
| IFL | I Found Love |
| IFL | Introduction to Foreign Language (various schools) |
| IFL | Infra-Free Life |
| IFL | Institute for Financial Literacy, Inc. |
| IFL | In Fake Life |
| IFL | Islamic Foundation of Lincoln (Nebraska) |
| IFL | Intermediate Flight Level |
| IFL | Interferon Leukocyte |
| IFL | Integrated Foundation Library |
| IFL | Interim Fast Lane |
| IFL | Interfacility Unit |
| IFL | In-Flight Lock (safety device on a missile launcher) |
| IFL | Ideas for Life |
| IFL | Isleboro Free Library (Isleboro, ME) |