Jakob Örn Sigurðarson (born 4 April 1982) is an Icelandic basketball coach and former player.

[6][7] On 5 January 2020, KR announced that he would miss significant time due to a slipped disk in his back.

[8] Jakob announced his retirement from basketball following KR's loss against Keflavík in the semi-finals of the 2021 Úrvalsdeild playoffs.

[12] Following KR's relegation to the second-tier 1. deild karla, Jakob was hired as the head coach of the team.

[13][14] Jakob is the older brother of professional basketball player Matthías Orri Sigurðarson.