• American Federation of Labor
  American Federation of Labor
  The American Federation of Labor was one of the first federations of labor unions in the United States. It was founded in 1886 by an alliance of craft unions disaffected from the Knights of Labor, a national labor association. Samuel Gompers was elected president of the Federation at its...
  
  , one of the first federations of labor unions in the United States, and now part of the AFL-CIO
• American Football League
  American Football League
  The American Football League was a major American Professional Football league that operated from 1960 until 1969, when the established National Football League merged with it. The upstart AFL operated in direct competition with the more established NFL throughout its existence...
  
   (a.k.a. "AFL IV") - a professional American football league that started competition in 1960, and merged with the National Football League (NFL) in 1970
• Arena Football League
  Arena Football League
  The Arena Football League is the highest level of professional indoor American football in the United States. It is currently the second longest running professional football league in the United States, after the National Football League. It was founded in 1987 by Jim Foster...
  
  , an American indoor football league
• Australian Football League
  Australian Football League
  The Australian Football League is both the governing body and the major professional competition in the sport of Australian rules football...
  
  , the premier Australian Rules football league

Other sports leagues

• American Fencing League
  American Fencing League
  The American Fencing League, or AFL, was founded on March 25, 2005 in Salem, Oregon, United States, by a group of fencers seeking independence from the United States Fencing Association. It is a non-profit organization for fencers who wish to enjoy fencing using non-electric foil, sabre, and épée...
  
  , a league for amateur standard fencing competition in the United States
• American Fight League An American mixed martial arts company founded in 2006
• American Football League (AFL), a name shared by several separate and unrelated professional American football leagues:
  • American Football League (1926)
    American Football League (1926)
    The first American Football League , sometimes called AFL I, AFLG, or the Grange League, was a professional American football league that operated in 1926. It was the first major competitor to the National Football League. Founded by C. C...
    
     (a.k.a "AFL I") - first rival of the National Football League (NFL) that competed in 1926
  • American Football League (1934)
    American Football League (1934)
    The 1934 edition of the American Football League was a short-lived minor professional football league with teams based in the American South and Southwest. The first of several minor leagues with the same name, the 1934 was also one of the first involving teams not located in the American Midwest...
    
     - regional borderline-major league that competed in 1934
  • American Football League (1936)
    American Football League (1936)
    Sometimes called AFL II, the second American Football League was a professional American football league that operated in 1936 and 1937. The AFL operated in direct competition with the more established National Football League throughout its existence...
    
     (a.k.a "AFL II") - second rival of the NFL that competed in 1936 and 1937
  • American Football League (1938)
    American Football League (1938)
    The Midwest Football League was a minor professional American football league that existed from 1935 to 1940. Originally comprising teams from Ohio, Kentucky, Indiana, and Illinois, the league eventually expanded its reach to include teams from Missouri, Tennessee, Wisconsin, and California to...
    
     - minor professional American football league that changed its name to the American Professional Football Association in 1939
  • American Football League (1940)
    American Football League (1940)
    American Football League, also known as the AFL III to distinguish it from earlier organizations of that name, was a major professional American football league that operated from 1940-1941...
    
     (a.k.a "AFL III") - third rival of the NFL that competed in 1940 and 1941
  • American Football League (1944)
    American Football League (1944)
    The Northwest War Industries League, later renamed the American Football League, was a professional football league based on the West Coast of the United States that played for two nonconsecutive seasons during World War II....
    
     - offshoot of the Pacific Coast Professional Football League, played one year before merging back with the PCPFL
  • American Football League (1946) - name adopted by the American Association minor American football league in 1946
• Arizona Fall League
  Arizona Fall League
  The Arizona Fall League is an off-season league owned and operated by Major League Baseball which operates during the fall in Arizona, United States at five spring training complexes...
  
  , American baseball league

Other

• Abstract family of languages
  Abstract family of languages
  In computer science, in particular in the field of formal language theory,the term abstract family of languages refers to an abstract mathematical notion generalizing characteristics common to the regular languages, the context-free languages and the recursively enumerable languages, and other...
  
  
• Academic Free License
  Academic Free License
  The Academic Free License is a permissive free software license written in 2002 by Lawrence E. Rosen, the general counsel of the Open Source Initiative ....
  
  
• Aeroflot
  Aeroflot
  OJSC AeroflotRussian Airlines , commonly known as Aeroflot , is the flag carrier and largest airline of the Russian Federation, based on passengers carried per year...
  
  , ICAO airline code
• AFL (video game series)
  AFL (video game series)
  The AFL video game series is a series of Australian rules football video games based on the AFL. Released originally by Beam Software, it has since been developed by several other game developers....
  
  
• Aflac
  Aflac
  Aflac Incorporated is the largest provider of supplemental insurance in the United States, founded in 1955 and based in Columbus, Georgia. In the United States, Aflac underwrites a wide range of insurance policies, but is perhaps more known for its payroll deduction insurance coverage, which pays...
  
   New York Stock Exchange abbreviation for, an American insurance company
• Alberta Federation of Labour
  Alberta Federation of Labour
  The Alberta Federation of Labour is the Alberta provincial trade union federation of the Canadian Labour Congress. It was founded in 1912 and has a membership of approximately 125,000 from 31 unions.-External links:*...
  
  
• Alta Floresta, Brazil IATA airport code
• Ankara Fen Lisesi, more widely known as Ankara Science High School
  Ankara Science High School
  Science High School is a public boarding high school in Ankara, Turkey with a curriculum concentrated on natural sciences and mathematics. It was established in 1964 as the first science high school in Turkey with a funding from the Ford Foundation. The school is modeled after the American...
  
  
• Anti-Football League
  Anti-Football League
  The Anti-Football League is an Australian organisation that pokes fun at the obsession with Australian Rules Football. It was founded by Melbourne journalist Keith Dunstan in 1967...
  
  , an organisation that bemoans the cultural saturation of the Australian Football League
• Armed Forces of Liberia
  Armed Forces of Liberia
  The Armed Forces of Liberia are the armed forces of the Republic of Liberia. Founded as the Liberian Frontier Force in 1908, the military was retitled in 1956. For virtually all of its history, the AFL has received considerable materiel and training assistance from the United States. For most of...
  
  
• Assessment for Learning
  Assessment for Learning
  In classrooms where assessment for learning is practiced, students know at the outset of a unit of study what they are expected to learn. At the beginning of the unit, the teacher will work with the student to understand what she or he already knows about the topic as well as to identify any gaps...
  
  
• Astrobiology Field Laboratory
  Astrobiology Field Laboratory
  The Astrobiology Field Laboratory was a proposed NASA unmanned spacecraft that would have conducted a robotic search for life on Mars. This proposed mission, which was not funded, would have landed a rover on Mars and explore a site thought to be a habitat...
  
  , a proposed and consequently cancelled (unfunded) robotic rover to be sent to planet Mars