MFI

MFI may mean:
* a Microfinance Institution, an alternate form of bank found in developing countries which provides microcredit lending.
* a United Kingdom furniture retailer: MFI Furniture Group plc
* Malmö Flyg Industri, see Saab MFI13
*Maquis Forces International is The 1st completely Internet based Star Trek (R) fan organization, based on the renegade faction seen on various episodes of 'The Next Generation', 'Deep Space Nine' and 'Voyager'. Maquis Forces International has been in existence since November 19th, 1994.
* Money Flow Index, a technical analysis indicator
* Multi-port Fuel injection