| Acronym | Definition |
|---|
| SIF➣Serviço de Inspeção Federal (Portuguese: Federal Inspection Service; Brazil) |
| SIF➣Supervised Injection Facility (drug care facility) |
| SIF➣As If |
| SIF➣Statens Institut for Folkesundhed (Danish: National Institute of Public Health) |
| SIF➣Select Income Fund |
| SIF➣Schools Interoperability Framework |
| SIF➣Status Information Frame |
| SIF➣Source Intermediate Format |
| SIF➣Synchronous Intermediate Form |
| SIF➣Scroll Information |
| SIF➣Setup Installation File |
| SIF➣Standard Image Format |
| SIF➣Setup Information File |
| SIF➣Signaling Information Field |
| SIF➣Solid Interchange Format |
| SIF➣Stress Intensification Factor (pipes) |
| SIF➣Second Injury Fund (compensation insurance; various locations) |
| SIF➣Special Investment Fund (various locations) |
| SIF➣Social Investment Forum |
| SIF➣Singapore International Foundation |
| SIF➣Standard Interchange Format |
| SIF➣Significant Influence Function (corporate governance) |
| SIF➣Strategic Innovation Fund (various locations) |
| SIF➣Safety Instrumented Function |
| SIF➣State Insurance Fund (Puerto Rican government agency) |
| SIF➣Subsequent Injury Fund (various locations) |
| SIF➣Stress Intensity Factor |
| SIF➣Selective Identification Feature |
| SIF➣Sons of Italy Foundation |
| SIF➣Svenska Industritjänstemannaförbundet (Swedish Industrial Workers Union) |
| SIF➣Source Input Format |
| SIF➣School Improvement Fund (various organizations) |
| SIF➣Strategic Infrastructure Fund (various locations) |
| SIF➣Sound Intermediate Frequency |
| SIF➣Structural Integrity Field (Star Trek) |
| SIF➣Serious Injury Frequency |
| SIF➣Store Integration Framework (middleware; IBM) |
| SIF➣Seat In Front |
| SIF➣State Investment Fund |
| SIF➣Secours Islamique France (French: Islamic Relief France; est. 1992) |
| SIF➣Stateful Inspection Firewall |
| SIF➣SONET Interoperability Forum |
| SIF➣Settlement in Full |
| SIF➣Student International Forum (various locations) |
| SIF➣Standard Infant Formula |
| SIF➣Systems Integration Facility |
| SIF➣Secondary Infertility |
| SIF➣Supposedly Irrelevant Factor (economics) |
| SIF➣Service Information Field |
| SIF➣SSDB Interchange Format |
| SIF➣Short Interframe Space (networking) |
| SIF➣Silkeborg If Fodbold (Danish soccer club) |
| SIF➣Secret Internet Fatty |
| SIF➣Security Information File |
| SIF➣Systèmes d'Information Fluviale (French: River Information System) |
| SIF➣Source Image Format |
| SIF➣Signal Information Field |
| SIF➣Spinal Injury Foundation (Westminster, CO) |
| SIF➣Standard Simulator Database Interchange Format |
| SIF➣Stumpy Induction Factor |
| SIF➣SOGS Integration Facility |
| SIF➣Signaux, Images et Formes (French: Signals, Images and Forms; signal processing) |
| SIF➣Security Issues Forum |
| SIF➣Scientific Instrument Formatter (NASA) |
| SIF➣Silent Installation File (Microsoft) |
| SIF➣Standard Interchange Facilities |
| SIF➣Special Instruction Form |
| SIF➣Software Input Form |
| SIF➣SACDIN System Integration Facility |
| SIF➣Surface Inlaid Fibre |