| Luonan County | |
| Native Name: | 洛南县 |
| Native Name Lang: | zh-Hans |
| Other Name: | Lonan |
| Postal Code: | 726100 |
| Postal Code Type: | Postal code |
| Settlement Type: | County |
| Subdivision Type: | Country |
| Subdivision Name: | People's Republic of China |
| Subdivision Type1: | Province |
| Subdivision Name1: | Shaanxi |
| Subdivision Type2: | Prefecture-level city |
| Subdivision Name2: | Shangluo |
| Area Code: | 0914 |
| Area Total Km2: | 2562 |
| Population As Of: | 2004 |
| Population Density Km2: | auto |
| Population Total: | 450000 |
| Coor Pinpoint: | Luonan County government |
| Coordinates: | 34.0908°N 110.1485°W |
| Elevation M: | 1000 |
| Timezone: | China Standard |
| Utc Offset: | +8 |
Luonan County (alternatively Chinese: 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 2562km2 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. Luonan has 14 towns. Its walnut production ranks first in China. Its gold production ranks third in Shaanxi. Its average temperature is . More than 66.7% of Luonan is covered in forests.[2]
Luonan County has 1 subdistrict and 9 towns.