List of NBA seasons

The National Basketball Association (NBA) is the major professional basketball league in North America. The league was founded in 1946 as the Basketball Association of America (BAA). The league adopted its current name at the start of 1949–1950 season when it merged with the National Basketball League (NBL). The league currently consists of thirty teams, of which twenty-nine are located in the United States and one in Canada. Each team plays 82 games in the regular season. Eight teams from each of the league's two conferences qualify for the playoffs. The winners of the Conference Finals advance to the finals to determine the NBA champions.

The Boston Celtics have had or tied for the best regular season record for a record 18 times. They won the Eastern Conference (known as the Eastern Division until 1970) for a record 21 times, while the Los Angeles Lakers won the Western Conference (known as the Western Division until 1970) for a record 31 times. The Celtics won 17 NBA championships, the most in NBA history. The Lakers followed them with 16 titles from their 31 Finals appearances. The Celtics and the Lakers had played each other in the Finals for a record 12 times. The Celtics won 9 of their matchups while the Lakers have only won 3.

The best single regular season record was recorded by the Golden State Warriors in the 2015–2016 season. In that season, the Warriors recorded 73 wins and 9 losses with a winning percentage of .890, eclipsing the 1995–1996 Chicago Bulls. The Bulls then went on to win the Eastern Conference and the NBA championship. The Bulls and the Warriors are the only teams to win at least 70 games in a single season. In the 1995–96 season, the Bulls achieved several awards and honors: Michael Jordan won the scoring title, the regular season Most Valuable Player (MVP) Award, the All-Star Game MVP Award and the Finals MVP Award; Dennis Rodman won the rebounding title; Toni Kukoč won the Sixth Man of the Year Award; Jordan and Scottie Pippen were named in the All-NBA First Team; Jordan, Pippen and Rodman were named in the NBA All-Defensive First Team; and coach Phil Jackson won the Coach of the Year Award.

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