| IFS | Fractal image compressed file (YuvPak) 
| Others |
| IFS | FRACTINT Iterated Function System Fractal
| Others |
| IFS | I Feel Special
| Others |
| IFS | I Fuel Swaraj
| Others |
| IFS | Ignition Failure Sensor
| Others |
| IFS | Ignition Fuel System
| Others |
| IFS | Image File System
| Others |
| IFS | Imagine Fulfillment Services
| Others |
| IFS | In Flight Safety
| Others |
| IFS | Inboard Front Suspension
| Others |
| IFS | Incredibly Fiddly And Slow
| Others |
| IFS | Independant Front Suspension
| Others |
| IFS | Independent Ferrari Service
| Others |
| IFS | Independent Filmmakers Showcase
| Others |
| IFS | Independent Front Suspension
| Others |
| IFS | Independent Fuel System
| Others |
| IFS | Indian Foreign Service
| Others |
| IFS | Indian Foreign Services
| Others |
| IFS | Indian Foreign ServiceThe
| Others |
| IFS | Indian Forest Service
| Others |
| IFS | Indianapolis Fleet Service
| Others |
| IFS | Induction Food Systems
| Others |
| IFS | Industrial and Financial System
| Others |
| IFS | Industrial And Financial Systems
| Others |
| IFS | Industrial Financial Systems
| Others |
| IFS | Inertia Fuel Shutoff
| Others |
| IFS | Inertia Fuel Switch
| Others |
| IFS | Inferior Front Suspension
| Others |
| IFS | Infiniti Financial Services
| Others |
| IFS | Inflight Survey
| Others |
| IFS | Inland Freight Station
| Others |
| IFS | Inland Fuel Surcharge
| Others |
| IFS | Inner Family System
| Others |
| IFS | Innovative Fulfillment Solutions
| Others |
| IFS | Innovative Funding Services
| Others |
| IFS | Input Field Separator
| Others |
| IFS | Insect Free System
| Others |
| IFS | Insertable File System
| Others |
| IFS | Inshore Fire Support ship
| Others |
| IFS | Insight Financial Services
| Others |
| IFS | Insights For Search
| Others |
| IFS | Inspirations For Songwriters
| Others |
| IFS | Installable File Smithware
| Others |
| IFS | Installable File System
| Others |
| IFS | Installable file system (OS/2)
| Others |
| IFS | Institute for Families in Society
| Others |
| IFS | Institute for Family Studies
| Others |
| IFS | Institute for Fiscal Studies
| Others |
| IFS | Institute for Fusion Studies
| Others |
| IFS | Institute for Sustainability
| Others |
| IFS | Institute of Forensic Sciences
| Others |
| IFS | Institutional File Space
| Others |
| IFS | Institutional File System
| Others |
| IFS | Institutional Financing Services
| Others |
| IFS | Insufficiant Front Suspention
| Others |
| IFS | Integer Feasible Solution
| Others |
| IFS | Integral Field Spectroscopy
| Others |
| IFS | Integrated Facilities System
| Others |
| IFS | Integrated Facility Services
| Others |
| IFS | Integrated File System
| Others |
| IFS | Integrated Filtration System
| Others |
| IFS | Integrated Forecast System
| Others |
| IFS | Integrated Forecasting System
| Others |
| IFS | Intelligent Fax System
| Others |
| IFS | Intelligent Franking Systems
| Others |
| IFS | Intelligent Front Lighting System
| Others |
| IFS | Intensive Freshman Seminars
| Others |
| IFS | Inter Frame Spacing
| Others |
| IFS | Interchange File Separator
| Others |
| IFS | InterFrame Space
| Others |
| IFS | Interim Facility Share
| Others |
| IFS | Internal Family Systems
| Others |
| IFS | Internal Field Separator
| Others |
| IFS | Internal File System
| Others |
| IFS | International Featured Standards
| Others |
| IFS | International Federation of Settlements
| Others |
| IFS | International Field Studies
| Others |
| IFS | International Fight Showdown
| Others |
| IFS | International Figure Skating
| Others |
| IFS | International Film Series
| Others |
| IFS | International Financial Statistics
| Others |
| IFS | International Fleet Sales
| Others |
| IFS | International Flying Ship
| Others |
| IFS | International Food Services
| Others |
| IFS | International Food Standard
| Others |
| IFS | International Foods Standard
| Others |
| IFS | International Foundation for Science
| Others |
| IFS | International Free Stylers
| Others |
| IFS | International Fund Services
| Others |
| IFS | Internet File System
| Others |
| IFS | Internet Fraud Screen
| Others |
| IFS | Introductory Flight Screening
| Others |
| IFS | Ios File System
| Others |
| IFS | IOS File System (Cisco)
| Others |
| IFS | Ip-Tables Firewall Script
| Others |
| IFS | Irradiated Food Syndrome
| Others |
| IFS | Isolated File Storage
| Others |
| IFS | It Flexes Sweet
| Others |
| IFS | Iterated Function Series
| Others |
| IFS | Iterated Function System
| Others |
| IFS | Iterated Function Systems
| Others |
| IFS | Iteration Fractal System
| Others |
| IFS | Iterative Function System
| Others |