Lalish (Arabic: لالش,Kurdish: Laliş, also called Lalişa nûranî) is a small mountain valley situated in the north of Iraq, about 60 km northwest of the city of Mosul. It is the location of the tomb of Şêx Adî, main figure of the Yazidi faith.
At least once in their lifetime Yazidis are expected to make a six-day pilgrimage to Lalish to visit the tomb of Şêx Adî and other sacred places. Yazidis living in the region are expected to make a yearly pilgrimage to attend the autumn Feast of the Assembly, which is celebrated from 23 Aylūl to 1 Tašrīn I.