CFL may refer to the following:
In education:
- College of Foreign Languages, a college of Vietnam National University, Hanoi
In linguistics:
- Commission on the Filipino Language, the official regulating body of the Filipino language
- Context-free language, a formal language that is a member of the set of languages defined by context-free grammars
In politics:
- Campaign for Liberty, an organization founded by United States Congressman Ron Paul
- Connecticut for Lieberman, the Connecticut political party created by twenty-five supporters of United States Senator Joe Lieberman
- Council of Four Lands, the central body of Jewish authority in Poland from 1580 to 1764
In science and technology:
- Color-flavor locking, a special type of color superconductivity that is predicted to occur in very dense matter
- Compact fluorescent lamp/light, a type of fluorescent lamp that fits into a standard light bulb socket or plugs into a small lighting fixture
- Compressed File Library, a virtual file system for programs
- Courant–Friedrichs–Lewy condition, a condition for convergence while solving partial differential equations
In sports:
- Canadian Football League, a professional sports league located in Canada that plays Canadian football
- Calcutta Football League, the football league where several football clubs of the Indian city of Kolkata participate
- Cheshire Football League, an English football league
- Continental Football League, an American football league played in North America from 1965 through 1969
- Central Football League, A football league in Scotland in the late 19th and early 20th centuries.
- Montenegrin First League (Crnogorska Fudbalska Liga), the main football competition in Montenegro
- Česká fotbalová liga the Czech football league
In trade unionism:
- Ceylon Federation of Labour, an organisation bringing together trade unions in the private, semi-government and co-operative sectors of Sri Lanka
- Chicago Federation of Labor, the central labor body for over 300 Chicago area unions affiliated with the AFL-CIO
- Chinese Federation of Labour, a national trade union center in Taiwan
In transportation:
- Chemins de Fer Luxembourgeois, the national railway company of Luxembourg
- Caminhos de Ferro de Luanda, railway in Angola
- Chemin de fer Lanaudière