Aşağışehirören is a village in Taşköprü District, in Kastamonu Province, Türkiye. Aşağışehirören lies at 1,164 m above sea level, in the Ilgaz mountains. It has 86 inhabitants. The nearest city is Boyabat, 31 km to the east. Among the landmarks around are Pompeiopolis (24 km).