MFL may refer to:
Sport leagues
Association football Macedonian Football League (disambiguation) Malaysian Football League Manchester Football League, English league MFL League, Turks and Caicos league Midland Football League, English league founded in 2014 Midland Football League (1994), English league founded as the Staffordshire Senior League in 1984 Media Football League, Russian league Montenegrin First League, top division association football league in Montenegro
Gridiron football Maritime Football League, Canadian football league Midwest Football League (1935–1940), American football league Midwest Football League (1962–1978), American football league
Other sports Mallee Football League, Australian rules football league in South Australia Millewa Football League, Australian rules football league in Victoria Montenegrin First League, water polo Montenegrin First League, women's handball Montenegrin First League, men's hanbdall Mortlock Football League, Australian rules football league in Western Australia Murray Football League, former name of the Murray Football Netball League, Australian rules football and netball league
Technology Magnetic flux leakage, a steel corrosion testing method Male flare fitting, in home brewing Message Format Language, in computing
Other uses Madras Fertilizers Limited, a partly publicly owned fertilizer manufacturer in Chennai, Tamil Nadu, India Manitoba Federation of Labour, a Canadian trade union centre Market–Frankford Line, a rapid transit rail line in Philadelphia, Pennsylvania, US Modern foreign languages, teaching living second languages to children Monona, Farmersburg, and Luana, Iowa