Kocaelispor
—
Show
Maccabi HaifaTransfer17 Jul 2026- ShowMaccabi HaifaTransfer16 Jul 2026
Haydar Karataş
SakaryasporFree agent16 Jul 2026
T. Zoukrou
BSC Young BoysLoan5 Jul 2026
Emir Ortakaya
RizesporTransfer4 Jul 2026- Emir OrtakayaRizesporTransfer3 Jul 2026
Uğur Kaan Yıldız
GöztepeFree agent30 Jun 2026
Habib Keita
Clermont FootTransfer30 Jun 2026
Onurcan Piri
KayserisporFree agent30 Jun 2026
M. Baku
AtromitosFree agent30 Jun 2026
Mesut Can Tunalı
Serik SporReturn from loan29 Jun 2026- Uğur Kaan YıldızGöztepeFree agent29 Jun 2026
- Habib KeitaClermont FootTransfer29 Jun 2026
- Haydar KarataşSakaryasporFree agent29 Jun 2026
- Onurcan PiriKayserisporFree agent29 Jun 2026
- M. BakuAtromitosFree agent29 Jun 2026
Ege Bilim
Yalova YeşilovasporReturn from loan29 Jun 2026- B. Yildiz
Söke 1970Return from loan29 Jun 2026 
Deniz CeylanKocaelispor—26 Feb 2026
Mahamadou Susoho
Manchester CityTransfer30 Jan 2026
Furkan Gedik
SarıyerFree agent28 Jul 2026
Darko Churlinov
Pogon SzczecinFree agent26 Jul 2026- Darko ChurlinovPogon SzczecinFree agent25 Jul 2026
Karol Linetty—Free agent22 Jul 2026- Mesut Can Tunalı
Adana 01 FKFree agent19 Jul 2026 
Botond Balogh
ParmaReturn from loan29 Jun 2026
Mateusz Wieteska
CagliariReturn from loan29 Jun 2026
Hrvoje Smolčić
Eintracht FrankfurtReturn from loan29 Jun 2026
Ahmet Oğuz—Free agent29 Jun 2026
Gökhan Değirmenci—Free agent29 Jun 2026- ShowMaccabi HaifaReturn from loan29 Jun 2026
Serdar Dursun—Free agent29 Jun 2026- Mesut Can Tunalı—Free agent29 Jun 2026
- Furkan Gedik—Free agent29 Jun 2026
- Furkan GedikSarıyerFree agent29 Jun 2026
- Habib KeitaClermont FootReturn from loan29 Jun 2026
Can Keleş
BeşiktaşReturn from loan29 Jun 2026- Deniz CeylanKocaelispor—26 Feb 2026
- Ege BilimYalova YeşilovasporLoan31 Jan 2026
Oleksandr Syrota
Dynamo KyivReturn from loan27 Jan 2026