Bag Durbar, () is a palace in Kathmandu, Nepal, west of the Dharahara and Tundikhel. Initially the palace was owned by Amar Singh Thapa (Sardar) of the Thapa regime and his descendant, but later was occupied by the Royals of the Shah dynasty and the government of Nepal.
The palace complex lay in the heart of Kathmandu to the north of the Bagmati River. The history of the palace is closely linked with the history of Nepal and its rulers.
This Palace was seriously damaged during the April 2015 Nepal earthquake. Currently the Kathmandu Metropolitan Office has started evacuation. The future of the Historical building is unknown.