The Id Kah Mosque is a historic mosque and tourist site located in Kashgar, Xinjiang, China.

Eidgah or Idgah, also Eid Gah or Id Gah is a term used in South Asian Islamic culture for the open-air enclosure usually outside the city reserved for Eid prayers offered in the morning of Eid al-Fitr and Eid al-Adha. It is usually a public place that is not used for prayers at other times of the year. On the day of Eid, the first thing Muslims do in the morning is gather usually at a large open ground and offer special prayers, in accordance with the Sunnah. Although the usage of the term Eidgah is of Indian origin, it may be used for the musalla, the open space outside a mosque, or other open grounds where Eid prayers are performed, due to the lack of a specific Islamic term for a site of Eid observance. The Eidgah is mentioned in the famous Bengali poem by Kazi Nazrul Islam, O Mon Romzaner Oi Rozar Sheshe.