Ongi Monastery, or Ongiin Khiid, is a historic monastery complex located along the Ongi River in Mongolia’s Dundgovi Province. Originally established in the 17th century, the monastery was once one of the largest in Mongolia, housing over a thousand monks. It included two main temples, the Barlim and Khutagt monasteries, set on opposite banks of the river. Ongi Monastery was known for its vibrant spiritual and scholarly community and served as a key religious and cultural center in Mongolia.

However, like many other monasteries, Ongi was heavily damaged during the religious purges of the 1930s, leaving only ruins that stand as a somber reminder of Mongolia’s turbulent history. Since the 1990s, efforts have been made to restore parts of the monastery, and it once again serves as a place of worship and a tourist destination. Today, visitors can explore the ruins, some restored stupas, and small temples, enjoying panoramic views of the Gobi landscape and learning about Mongolia’s Buddhist heritage. The site offers a serene atmosphere, blending historical reverence with natural beauty.