美国国家篮球协会（英语：National Basketball Association，缩写为NBA）是北美的男子职业篮球组织，拥有30支球队，分属两个分区（Conference）：东部联盟和西部联盟；而每个联盟各由三个赛区（Division）组成，每个赛区有五支球队。30支球队当中有29支位于美国，另外一支来自加拿大的多伦多。其赛事一般直接称作NBA、美国篮球联赛或美国职业篮球联赛（简称“美职篮”）。

NBA正式赛季于每年11月的第一个星期的星期二开始，分为常规赛和季后赛两部分。常规赛为循环赛制，每支球队都要完成82场比赛；常规赛到次年的4月结束，每个联盟的前八名，包括各个赛区的冠军，将有资格进入接下来进行的季后赛。季后赛采用七战四胜赛制，共分四轮；季后赛的最后一轮也称为总决赛，由两个联盟的冠军争夺NBA的最高荣誉——总冠军。整个NBA赛季当中，常规赛完结之后分区冠军不设奖杯，只给予得奖球队锦旗一个，但联盟冠军及总冠军均设有奖杯加锦旗。

The National Basketball Association (NBA) is the pre-eminent men's professional basketball league in North America, and is widely considered to be the premier men's professional basketball league in the world. It has 30 teams (29 in the United States and 1 in Canada), and is an active member of USA Basketball (USAB), which is recognized by FIBA (also known as the International Basketball Federation) as the national governing body for basketball in the United States. The NBA is one of the four major North American professional sports leagues. NBA players are the world's best paid sportsmen, by average annual salary per player.