| Type: | village |
| Province: | Zonguldak |
| District: | Ereğli |
| Çaylıoğlu | |
| Population Total: | 433 |
| Population As Of: | 2022 |
| Coordinates: | 41.2289°N 31.6883°W |
| Elevation M: | 50 |
| Postal Code: | 67380 |
| Area Code: | 0372 |
Çaylıoğlu is a village in Ereğli District of Zonguldak Province, Turkey.[1] Its population is 433 (2022).[2] Before the 2013 reorganisation, it was a town (belde).[3] It is situated east of Karadeniz Ereğli. The settlement was founded in 1800s by a clan from Haymana in Ankara Province. The name of the settlement refers to the name of the clan. In 1950 s the main economic activity of the settlement was services in manganese mines around. In 1996 it was declared a seat of township with the name Güneşli. However, in 2007 the former name was adopted.[4]