Hacıoğlu is a neighborhood in Bafra District, in Samsun Province, Türkiye. Hacıoğlu lies 0.6 km from the Küre mountains. It has 181 inhabitants. The nearest city is Bafra, 12.6 km to the northeast. Among the landmarks around are Altınkaya Dam (15.5 km), Derbent Dam (5.9 km) and İkiztepe (15.0 km).