It is possible with limited tools (unfair competition), but weak. The first step is a registration strategy; a swift application should be filed while preserving your evidence of prior use.
Two levers exist even before that lands. A mark that is well known in Türkiye can be protected without local registration under Article 6bis of the Paris Convention, though proving that status is demanding. And genuine ownership together with priority of use is the foundation of an action to invalidate a registration made in bad faith — which is the answer where someone has already registered your mark here. Registration also unlocks a customs-watch recordal — the practical tool that stops counterfeits at the border — so filing quickly does double duty.
Shall we apply this matter to your situation?
Tell us your specific situation in a few sentences; we'll assess it with the right team.