MFI or M.F.I. may refer to:
Companies and organizations MFI Foundation Inc., non-profit science foundation in the Philippines MFI (retailer), British 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 Monetary Financial Institutions, ECB terminology for banks and other financial institutions