Alaca (, ) is a neighbourhood in the municipality and district of Kulp, Diyarbakır Province in Turkey.Mahalle , Turkey Civil Administration Departments Inventory. Retrieved 12 July 2023. It is populated by Kurds and had a population of 209 in 2022.

Kregan/Kerikan had 34 Armenians, 3 houses, and one church before the Armenian genocide.

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