NF may refer to:
NF-κB (nuclear factor kappa-light-chain-enhancer of activated B cells) is a protein complex that controls transcription of DNA, cytokine production and cell survival.
The World League of American Football (shortened to WLAF or World League), later renamed the NFL Europe League (NFL Europe for short) and then NFL Europa, was a professional American football league which operated between 1991 and 2007. It was backed by the National Football League (NFL), the largest league in the United States.
The NFL Network (occasionally abbreviated on-air as NFLN) is an American sports-oriented cable and satellite television network that is owned by the National Football League (NFL) and is part of NFL Media, which also includes NFL.com, NFL Films, NFL Mobile, NFL Now and NFL RedZone.
The National Football League (NFL) on Thanksgiving Day is a traditional series of games played during the Thanksgiving holiday in the United States.
The National Football League (NFL) regular season begins the weekend after Labor Day in early September and ends in December or early January.
The NFL on CBS is the branding used for broadcasts of National Football League (NFL) games that are produced by CBS Sports, the sports division of the CBS television network in the United States.
The National Football League playoffs are a single-elimination tournament held after the end of the National Football League (NFL) regular season to determine the NFL champion.
Since the 2007 season, the National Football League (NFL) has hosted regular season American football games outside of the United States every year in a series known as the NFL International Series.