Kozdere is a neighborhood in Nazilli District, in Aydın Province, Türkiye. Kozdere lies at 588 m above sea level, in the Aydin mountains. It has 425 inhabitants. The nearest city is Nazilli, 15.6 km to the southwest. Among the landmarks around are Aphrodisias (39 km), Nysa on the Maeander (30 km) and Mastaura (10.6 km).