Longnan (simplified Chinese: 龙南; traditional Chinese: 龍南; pinyin: Lóngnán) is a county-level city under the jurisdiction of Ganzhou Municipality, in the far southwest of Jiangxi province, China, bordering Guangdong province to the south.

In the present, Longnan City has 8 towns and 5 townships.

[1] Longnan is notable for the variety of traditional Hakka walled villages in Jiangxi.

[2] Longnan is also regarded as "the Hometown of Weiwu in China" 新华网-客家围屋之乡.

Some of the most famous weiwu are Guangxi Wei 百度百科-关西围屋 and Yanyiwei.关西围屋与燕翼围 Some researchers call them "Jiangxi tulou" (literally, "[tall] earthen buildings"), as opposed to the better known Fujian tulou.