Mahmuttırı is a village in Gerze District, in Sinop Province, Türkiye. Mahmuttırı lies at 193 m above sea level, in the Küre mountains. It has 239 inhabitants. The nearest city is Sinop, 24 km to the north. Beaches nearby: Cayva (7.4 km), Cayva (7.7 km). Among the landmarks around are Carussa (6.9 km) and Gerze Lighthouse (7.8 km).