MFI or M.F.I. may refer to: Companies and organizations MFI Foundation Inc., non-profit science foundation in the Philippines MFI Group, British furniture retailer Media Factory, Inc., anime company Messiah Foundation International, a spiritual organization Microfinance institution, alternate form of bank in developing countries which provides microcredit lending MindFreedom International, group that fights involuntary therapy Ministers Fellowship International, fellowship of non-denominational charismatic churches Missionary Flights International, a religious charity providing aviation support with DC-3 aircraft Other MFi Program, "Made for iPhone/iPod/iPad", a licensing program for developers of hardware and software for Apple products Magnetic field imaging, a noninvasive and contact-free cardiac diagnostic method Melt flow index, a measure of the ease of flow of the melt of a thermoplastic polymer Micromechanical Flying Insect, ornithopter robot that flies based on insect flight technique Mikoyan Project 1.44, MiG-MFI, Russian fighter aircraft project (cancelled) Minimum Fisher information, variational principle in information theory Money flow index, indicator in technical analysis