Ağcaalan is a village in Erbaa District, in Tokat Province, Türkiye. Ağcaalan lies at 508 m above sea level, in the Sakarat Dağı mountains. It has 300 inhabitants. The nearest city is Erbaa, 9.6 km to the west. Among the landmarks around are Comana Pontica (30 km), Horoztepe (11.2 km) and Kevgürk Castle (21 km).