This is a list of the longest regular season losing streaks in National Basketball Association (NBA) history.
The Detroit Pistons and the Philadelphia 76ers are tied for the longest ever losing streak, losing 28 straight games.
The 2023–24 Detroit Pistons have the longest losing streak in a single season, while the Philadelphia 76ers lost 28 consecutive games across two seasons: 2014–15 and 2015–16.
[1] For tiebreakers, precedence is given to single season streaks over multi-season streaks; otherwise ties are listed in chronological order with earliest occurrence listed first.
This list contains only streaks consisting entirely of postseason games.