Aşağıerhacı is a village in Iğdır District, in Iğdır Province, Türkiye. Aşağıerhacı lies 3.3 km from the Mount Ararat mountains. It has 4,226 inhabitants (2022). The nearest city is Iğdır, 5.7 km to the northwest. Near the border: Armenia, 16 km. Among the landmarks around are Etchmiadzin Cathedral (35 km), Saint Hripsime Church (37 km) and Argištiḫinili (26 km).