IFL may refer to:
American football Intense Football League (2004–2008), in the United States, merged into the Indoor Football League Indoor Football League (2008–present), in the United States Intercontinental Football League, a European league proposed by the NFL in the 1970s Israel Football League (2007–present), in Israel Italian Football League (2008–present), in Italy
Association football Indonesian Futsal League Indian Football League, a precursor of India's I-League Irish Football League, Northern Ireland Istanbul Football League, the football league of the Ottoman Empire (defunct)
Other Interflug (1963–1990), national airline of East Germany International Fight League, a former American mixed martial arts league Imperial Fascist League, British fascist group of the 1930s Imperial Federation League, advocated consolidation of the British Empire Intact forest landscape Integrated Facility for Linux, an IBM mainframe processor for the Linux operating system Baylor Institute for Faith and Learning, division of a Baptist university in Texas IFL (chemotherapy), a chemotherapy regimen Institute for Learning, a defunct UK body intended to promote teaching Indian Federation of Labour (1941–1948), a British-supported federation of Indian trade unions International Ferro Metals, a ferrochrome producer operating in South Africa Innisfail Airport, IATA airport code "IFL" identity-first language