IPF
- IPFilter
- Ice Peak Formation
- Idiopathic pulmonary fibrosis
- Independent Production Fund
- Indian People's Front
- Information Presentation Facility
- Intaken piled fathom
- Interchangeable Preservation Format
- International Pen Friends
- International Pickleball Federation
- International Powerlifting Federation
- Ipf (mountain)
- Itanium
- Iterative proportional fitting
- YPF