Karadeniz Ereğli is a city in Zonguldak Province of Turkey on the Black Sea shore. It is the seat of Ereğli District. Its population is 122,282 (2022). The mayor of the city is Halil Posbıyık. Mehmet Yapıcı is the District Governor of Ereğli.

Marmara Ereğlisi, also spelled Marmaraereğlisi, is a municipality and district of Tekirdağ Province, Turkey. Its area is 175 km2, and its population is 29,549 (2022). The mayor, as of September 2023, is Hikmet Ata (AKP).