NBA 2K18 is a 2017 basketball simulation video game developed by Visual Concepts and published by 2K. It is the 19th installment in the NBA 2K franchise, the successor to NBA 2K17, and the predecessor to NBA 2K19. It was released on September 19, 2017 for Microsoft Windows, Nintendo Switch, PlayStation 3, PlayStation 4, Xbox 360, Xbox One, iOS and Android. Kyrie Irving of the Boston Celtics serves as cover athlete for the regular edition of the game, Shaquille O'Neal is the cover athlete for the special editions, and DeMar DeRozan of the Toronto Raptors is the cover athlete for the Canadian version. While a member of the Cleveland Cavaliers when selected for the cover, Irving was traded to the Boston Celtics prior to the game's release. As a result, a new cover depicting Irving in a Celtics uniform was revealed alongside the original cover. This was the last installment in the series to be released for the Xbox 360 and PlayStation 3.

NBA 2K18, like the previous games in the series, simulates the experience of the National Basketball Association (NBA). Several game modes are present, including the team-managing MyGM and MyLeague modes, which were a considerable emphasis during development, and MyCareer, in which the player creates and plays through the career of their own player. The game features a licensed soundtrack consisting of 49 songs.