Military
* Myanmar Air Force * Malaysian Armed Forces * Marine Amphibious Force, a former name for Marine Expeditionary Force, a type of U.S. Marine Corps task forceOrganizations
* Majid Al Futtaim Group * Move America Forward * Mission Aviation FellowshipScience
* MAF (gene) * Minor allele frequency in genetics * Methoxyacetylfentanyl, an opioid analgesic * Macrophage-activating factor * Moisture and Ash Free, a measure of moisture and ash content as used in ranking coals or the heat-content of wood * Million acre-foot, MAF, a unit of volume commonly used in the United States in reference to large-scale water resourcesSports
* Malaysia Athletics Federation * Metin-Ali-Feyyaz, Turkish football trio who constituted attacking line of Turkish sports club Beşiktaş J.K. * Marc-André Fleury (born 1984), Canadian ice hockey goaltender in the National Hockey LeagueTechnology
* Mass airflow sensor, used to find the mass flowrate of air entering a fuel-injected internal combustion engine * MAFless Tuning, a method of operating the fuel injection system on a gasoline-powered motor vehicle whereby the mass airflow meter is removed * Markranstädter Automobilfabrik, a German car-brand built from 1909 to 1923 in Markranstädt * Mozilla Archive Format, a format for archiving web pages and also an add-on of the same name for Mozilla Firefox * Magnetic field-assisted finishing * Microsoft Access Form, a file format associated withOther
* New Zealand Ministry of Agriculture and Forestry * Saint Martin (France), ISO 3166-1 alpha-3 country code * Midland International Airport, whose IATA code is MAF * Michoud Assembly Facility, a NASA manufacturing facility 14 miles outside New Orleans, Louisiana {{disambiguation