|Country||People's Republic of China|
|County seat||Xinglong Town (兴隆镇)|
|• Total||3,116 km2 (1,203 sq mi)|
|Elevation||579 m (1,900 ft)|
|• Density||100/km2 (270/sq mi)|
|Time zone||UTC+8 (China Standard)|
Xinglong County (simplified Chinese: 兴隆县; traditional Chinese: 興隆縣; pinyin: Xīnglóng Xiàn) is a county in the northeast of Hebei province, bordering the municipalities of Beijing to the west and Tianjin to the southwest. It is under the administration of the prefecture-level city of Chengde, with a population of 320,000[when?] residing in an area of 3,116 km2 (1,203 sq mi).
There are 9 towns, 9 townships, and 2 ethnic townships under the county's administration.