[1] Onsala BK is the biggest football club in Halland, with over a thousand active players, both boys and girls.

They play their home matches at the Rydets IP in Onsala.

Onsala BK competed again in 2016-17 Svenska Cupen where they won over Västra Frölunda IF in the first round 4–2 but then lost 6–0 to the Superettan team Ängelholms FF * League restructuring in 2006 resulted in a new division being created at Tier 3 and subsequent divisions dropping a level.

They won Swedish football Division 4 Halland with a margin of 15 points, just losing one game all season.

Onsala got promoted and started playing in Swedish football Division 3 Sydvästra Götaland in 2017.