Longchuan County (postal: Lungchun; simplified Chinese: 龙川县; traditional Chinese: 龍川縣; pinyin: Lóngchuān Xiàn; lit.

'dragon river county', Hakka: Liùngchôn) is a county of northeastern Guangdong province, China, bordering Jiangxi to the north and on the upper reaches of the Dong and Han Rivers.

It is under the administration of Heyuan City, and in 2020 had a population of 595,471[1] living in an area of 3,088 km2 (1,192 sq mi).

Major roads include the China National Highway 205 (G205) and Guangdong Provincial Highway 120 (S120).

This Guangdong location article is a stub.