MFL may refer to: Football leagues England Manchester Football League Midland Football League (1994) Midland Football League (2014) United States Midwest Football League (1935–1940) Midwest Football League (1962–1978) Elsewhere Malaysian Football League Mallee Football League, South Australia Maritime Football League, Canada Media Football League, Russia Technology Magnetic flux leakage, a steel corrosion testing method Male flare fitting, in home brewing Message Format Language, in computing Other uses Manitoba Federation of Labour, a Canadian trade union Market–Frankford Line, a rapid transit rail line in Philadelphia, Pennsylvania, US Modern foreign languages, teaching living second languages to children