Chengde (Chinese: 承德; pinyin: Chéngdé), previously known as Jehol or Re He (Chinese: 热河; pinyin: Rèhé), is a prefecture-level city in Hebei province, People's Republic of China, situated northeast of Beijing. It is best known as the site of the Mountain Resort, a vast imperial garden and palace formerly used by the Qing emperors as summer residence. The urban center had a population of approximately 450,000 as of 2009.

In 1703, Chengde was chosen by the Kangxi Emperor as the location for his summer residence. Constructed throughout the eighteenth century, the Mountain Resort (避暑山庄; literally "avoiding the heat mountain villa") was used by both the Yongzheng and Qianlong emperors. The site is currently an UNESCO World Heritage Site. Since the seat of government followed the emperor, Chengde was a political center of the Chinese empire during these times.

The city of Jehol reached its height under the Qianlong Emperor 1735-1796 (died 1799). The great monastery temple of the Potala, loosely based on the Potala in Lhasa, was completed after just four years of work in 1771. It was heavily decorated with gold and the emperor worshipped in the Golden Pavilion. In the temple itself was a bronze-gilt statue of Tsongkhapa, the Reformer of the Gelugpa sect.