Çük (Çuq;  or ; Cyrillic: Чук, Чүк, Чӳк, Чӱк) was a holiday of Keräşen Tatars, Chuvashes, Udmurts, preserved before the beginning of 20th century. It was celebrated as summer, before the Whitsunday or at the Poqraw eve (The Intercession).
Çük (Çuq;  or ; Cyrillic: Чук, Чүк, Чӳк, Чӱк) was a holiday celebrated by the Keräşen Tatars, Chuvashes, and Udmurts before the 20th century. It was observed as a summer celebration, prior to Whitsunday or on the eve of Poqraw (The Intercession).