Kuzeyliler is an organised supporter group associated with Sinopspor and the club’s blue-and-white football culture.
The group is active in supporter mobilisation, organised matchday backing and efforts to bring together the wider Sinopspor supporter community.
Kuzeyliler remained clearly active in 2025. In September, the group called supporters to gather in Uğur Mumcu Square before Sinopspor’s Turkish Cup match against Orduspor 1967, organised a march to the stadium and publicly invited supporter communities from districts across Sinop to unite behind the team.