全国美式足球联盟(National Football League (NFL))
美国主要的职业美式足球组识。1920年成立於俄亥俄州广州，首任主席是索普。1970年与对立的美国美式足球联盟（成立於1959年）合并。自2002年球季开始，分成两个协会，其下各有四区。全国协会包括东区（达拉斯牛仔队、纽约巨人队、费城老鹰队和华盛顿红人队）、南区（亚特兰大猎鹰队、卡罗来纳豹队、纽奥良圣徒队和坦帕湾海盗队）、北区（芝加哥熊队、底特律狮子队、绿湾包装人队和明尼苏达维京人队）和西区（亚利桑那红雀队、圣路易公羊队、旧金山四九人队和西雅图海鹰队）。美国协会包括东区（水牛城比尔队、迈阿密海豚队、新英格兰爱国者队和纽约喷射机队）、南区（休士顿德州队、印第安纳波里小马队、杰克森维尔美洲豹队和田纳西泰坦队）、北区（巴尔的摩乌鸦队、辛辛那提孟加拉虎队、克利夫兰布朗队和匹兹堡钢人队）和西区（丹佛野马队、堪萨斯城酋长队、奥克兰突击者队和圣地牙哥冲锋者队）。联盟球季随着全国和美国两协会的胜利队伍，争夺超级盃美式足球赛世界冠军的头衔达到高潮。
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National Football League (NFL)
Major professional football organization in the U.S. It was founded in 1920 at Canton, Ohio; its first president was Jim Thorpe. In 1970 it merged with the rival American Football League (founded 1959). Beginning with the 2002 season, it was divided into two conferences, each with four divisions. The National Conference consists of the East Division (Dallas Cowboys, New York Giants, Philadelphia Eagles, and Washington Redskins), the South Division (Atlanta Falcons, Carolina Panthers, New Orleans Saints, and Tampa Bay Buccaneers), the North Division (Chicago Bears, Detroit Lions, Green Bay Packers, and Minnesota Vikings), and the West Division (Arizona Cardinals, St. Louis Rams, San Francisco Forty-Niners, and Seattle Seahawks). The American Conference consists of the East Division (Buffalo Bills, Miami Dolphins, New England Patriots, and New York Jets), the South Division (Houston Texans, Indianapolis Colts, Jacksonville Jaguars, and Tennessee Titans), the North Division (Baltimore Ravens, Cincinnati Bengals, Cleveland Browns, and Pittsburgh Steelers), and the West Division (Denver Broncos, Kansas City Chiefs, Oakland Raiders, and San Diego Chargers). The league season culminates with the Super Bowl, the annual championship game between the winners of the National and American conferences.