Mesutlu is a neighborhood in Efeler District, in Aydın Province, Türkiye. Mesutlu lies at 44 m above sea level, in the Topçambaba mountains. It has 233 inhabitants. The nearest city is Aydın, 11.0 km to the northwest. Among the landmarks around are Alabanda (23 km), Seikilos epitaph (12.4 km) and Nysa on the Maeander (19.8 km).