Atasu is a neighborhood in Maçka District, in Trabzon Province, Türkiye. Atasu lies in the Rize Dağları mountains. It has 1,039 inhabitants (2022). The nearest city is Çukurçayır, 19.1 km to the north. Among the landmarks around are Sumela Monastery (14.4 km), Hagia Sophia (21 km) and Kuştul Monastery (3.5 km). Among the natural features are Boztepe Hill (20 km) and Zigana Pass (30 km).