Doğrul is a village in Boyabat District, in Sinop Province, Türkiye. Doğrul lies at 1,123 m above sea level, in the Ilgaz mountains. It has 87 inhabitants. The nearest city is Boyabat, 20 km to the northeast. Among the landmarks around are Saraydüzü Dam (13.0 km) and Boyabat Castle (18.9 km).