Türkmenlioğlu is a village in Gerze District, in Sinop Province, Türkiye. Türkmenlioğlu lies at 142 m above sea level, in the Küre mountains. It has 152 inhabitants. The nearest city is Sinop, 24 km to the north. Beaches nearby: Cayva (6 km), Cayva (6.3 km). Among the landmarks around are Carussa (5.4 km) and Gerze Lighthouse (6.3 km).