The Fjölnir men's basketball, commonly known as Fjölnir, is the men's basketball department of Ungmennafélagið Fjölnir multi-sport club. It is based in Grafarvogur, Reykjavík. As of the 2019-2020 season it plays in the Úrvalsdeild karla.

Fjölni, also known as the Fjölni basketball team, is a prominent basketball club based in Iceland. Established with a rich history in Icelandic sports, Fjölni is renowned for its competitive spirit, talented players, and commitment to developing basketball at the national level. The team competes in Iceland's top basketball leagues and has a dedicated fan base that supports their endeavors both on and off the court. Known for their teamwork, strategic play, and community involvement, Fjölni continues to be a significant presence in Icelandic basketball, striving for excellence and growth in the sport.