Beykoz is a village in Daday District, in Kastamonu Province, Türkiye. Beykoz lies at 1,198 m above sea level, in the Küre mountains. It has 121 inhabitants. The nearest city is Kastamonu, 46 km to the east. Among the landmarks around are Mahmut Bey Mosque (37 km) and Bonita (10.5 km).