Professional football may refer to:
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Professionalism in association football
Association football is the world's most popular sport and is worth US$600 billion worldwide. By the end of the 20th century it was played by over 250 million players in over 200 countries. Around the world, the sport is played at a profes ...
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Professional gridiron football
In the United States and Canada, the term professional football () includes the professional forms of American and Canadian gridiron football. In common usage, it refers to former and existing major football leagues in either country. Currently, ...
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National Football League
The National Football League (NFL) is a Professional gridiron football, professional American football league in the United States. Composed of 32 teams, it is divided equally between the American Football Conference (AFC) and the National ...
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Canadian Football League
The Canadian Football League (CFL; , LCF) is a Professional gridiron football, professional Canadian football league in Canada. It comprises nine teams divided into two divisions, with four teams in the East Division (CFL), East Division and f ...
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Australian Football League
The Australian Football League (AFL) is the pre-eminent professional sports, professional competition of Australian rules football. It was originally named the Victorian Football League (VFL) and was founded in 1896 as a breakaway competition ...
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