Boyuk Aghbaba is a mountain with a height of 3011 m in the Kars district of the Kars province, in the Aghbaba area, and currently in the Shirak province, on the border with Türkiye and Georgia.

During the Soviet era, the mountain was named after the revolutionary Ghukasyan as “Mets Gukasyan”. Its present name is “Yerakatar”.