Björn Kristjánsson (born 4 November 1992) is an Icelandic basketball player.

[4] After spending the 2016–2017 season with Njarðvík, Björn returned to KR in June 2017.

[7] Due to a lingering hip injury, Björn was expected to miss the start of the 2019–20 season.

[8] In January 2020, KR announced that Björn would undergo a surgery and miss the rest of the season.

Initially cleared to play the first half of the season, the disease limited him to two games and forcing him to announce his retirement in November 2022.