Jiexi County () is a county of eastern Guangdong province, China. It is under the administration of Jieyang city with a jurisdiction area of 1,279 km<sup>2</sup> (494 sq mi) and a total population of 674,829 according to the 2020 census. Amongst them, 209,233 are downtown residents.
Immigrants from Jiexi form a large overseas Chinese population who speak the Hepo dialect of Hakka (70%), mainly in Sarawak, Johor and Negeri Sembilan (Malaysia), and Bangka Belitung, Sumatra (Indonesia). Other people from Jiexi speak the Chaoshan Min (30%). In the late 18th and early 19th century, settlers from Jiexi county formed the Lintian kongsi republic, an autonomous polity named after a temple in Jiexi dedicated to the Lords of the Three Mountains in Jieyang ().
Jiexi is home to the Huangmanzhai waterfalls. There are ambitions to make Jiexi County a more attractive tourist destination following investment in 2010.
The Lords of the Three Mountains, also Kings of the Three Mountains) are a triad Taoist deities worshiped in Southern China (mainly Teochew people) and the part of Hakka people in Taiwan. The Three Mountains refer to three mountains in Jiexi County:
The main territory of Jiexi County originally belonged to Jieyang. During the Qin, Han, and Three Kingdoms period, it was under Nanhai Commandery (Ã¥ÂÂæµ·é¡). In the sixth year of the Jin dynastyâÂÂs Xianhe era (æÂÂå¸åÂÂå Âå¹´, 331 AD), it came under Dongguan Commandery (æÂ±å®Âé¡), the predecessor of today's Dongguan (æÂ±èÂÂå¸Â) and Huizhou (æÂ å·Âå¸Â). In the ninth year of the Eastern Jin Yixi era (æÂ±æÂÂ義çÂÂä¹Âå¹´, 413 AD), it belonged to Haiyang County (æµ·é½縣) under Yian Commandery (義å®Âé¡).
By the Sui dynasty (éÂÂæÂÂ), in the eleventh year of the Kaihuang era (éÂÂçÂÂÃ¥ÂÂä¸Âå¹´, 591 AD), it was incorporated into Teochew. In the third year of the Northern Song Xuanhe era (Ã¥ÂÂå®Â宣åÂÂä¸Âå¹´, 1121 AD), the area of presentâÂÂday Jiexi was placed under Jieyang County (æÂÂé½縣), which was administered by Teochew. In the second year of the Southern Song Shaoxing era (Ã¥ÂÂå®Âç´¹èÂÂäºÂå¹´, 1132 AD), it was merged into Haiyang again; in the eighth year of Shaoxing (AD1138), Jieyang County was reâÂÂestablished and remained under Teochew.
In the Yuan dynasty (1279 AD), it belonged to Chaozhou Lu (æ½®å·Âè·¯). In the second year of the Ming Hongwu era (æÂÂæÂÂæ´ªæÂ¦äºÂå¹´, 1369 AD), it was under Chaozhou Prefecture (æ½®å·ÂåºÂ). The Qing dynasty continued the Ming administrative structure, so it remained part of Chaozhou Prefecture.
In the 3rd year of the Republic of China (æ°ÂÃ¥ÂÂä¸Âå¹´, 1914 AD), the main territory of Jiexi was under Jieyang County within the ChaoâÂÂXun Circuit of Guangdong (廣æÂ±æ½®å¾ªéÂÂ), which was administered by Shantou (æ±Âé Â). In 1925, it came under the Dongjiang Administrative Committee (æÂ±æ±Âè¡ÂæÂ¿å§Â塿ÂÂ). In 1928, it was placed under the Dongjiang Reconstruction Commission (æÂ±æ±ÂÃ¥ÂÂå¾Âå§Âå¡堬署).
In October 1949, after the founding of the PeopleâÂÂs Republic of China, the main territory of Jiexi remained under Jieyang County, administered by the Chaoshan CommissionerâÂÂs Office (æ½®æ±Âå°Âå¡堬署). In 1965, the western part of Jieyang County and parts of Lufeng County (é¸è±Â縣) were separated to form Jiexi County, named for its location west of Jieyang. In December 1991, Jiexi County came under the jurisdiction of Jieyang.
From both Guangzhou and Hong Kong the county is about away.