List of National Basketball Association seasons played leaders

Only five players in the history of the National Basketball Association (NBA) have played at least 20 seasons in their careers. In 1985–86, Kareem Abdul-Jabbar broke the previous NBA record of 16 seasons held by Dolph Schayes, John Havlicek, Paul Silas, and Elvin Hayes; he finished his career in 1988–89 with a then-record 20 seasons played. Robert Parish broke the mark in 1996–97, when he retired after 21 seasons, and Kevin Willis tied him in his final season in 2006–07. They were joined by Kevin Garnett in 2015–16 when he began his 21st season. His Minnesota Timberwolves played their season opener against the Los Angeles Lakers and Kobe Bryant, who became the fifth player to reach the 20-season plateau that night. The game was the first time in league history that two opposing players had at least 20 years of experience. Having played his entire career with the Lakers, Bryant was also the first NBA player to spend 20 seasons with one team.

In the NBA, big men typically have longer playing careers than smaller men. Older centers and power forwards may have the luxury of pacing themselves while running the court, or they might station themselves in the post. Big men Parish, Willis, and Garnett all had small roles while playing in their 21st season. On the other hand, guards are tasked with handling the ball full-court and are more dependent on their speed and quickness, traits that deteriorate with age. Bryant was the first guard to play in 20 seasons, passing the previous mark of 19 seasons for guards, held by John Stockton and Jason Kidd.