Luonan County (traditional Chinese: 洛南縣; simplified Chinese: 洛南县; pinyin: Luònán Xiàn, alternatively 雒南縣) is a county under the administration of Shangluo city, in the east of Shaanxi province, China, bordering Henan province to the east.

It has an area of 2,562 km2 (989 sq mi) and a population of 450,000 as of 2004.

[1] Luonan is at the source of the Luo River.

It is 108 kilometers away from Xi'an, the capital of Shaanxi province.

[2] Luonan County has 1 subdistrict and 9 towns.