甘丹寺（Gandan Monastery）位于烏蘭巴托市中心，是蒙古最大的寺廟。烏蘭巴托市的前身大庫倫是甘丹寺的基礎上逐漸發展成城鎮的。寺內最引人矚目的是章冉澤大佛，此佛高28米，全身鍍金，鑲嵌大量寶石，氣勢雄偉，富麗堂皇，是蒙古的國寶。

Gandan is the largest and most significant monastery in Mongolia and one of Ulaanbaatar's most interesting sights. Built in the mid 19th century, it is the only monastery where Buddhist services continued during the communist years. Temples are flocked by visitors during religious services that start at 10 a.m. and last until mid day. Most important part of a monastery is the Megjid Janraiseg temple.