Alaca is a neighborhood in Kulp District, in Diyarbakır Province, Türkiye. Alaca lies at 1,362 m above sea level, in the Southeastern Taurus mountains. It has 243 inhabitants. The nearest city is Muş, 31 km to the east. Among the landmarks around are Arakelots Monastery (31 km) and Yeghrdut Monastery (21 km).