Location of the seat in Shandong
|Country||People's Republic of China|
|• Total||1,719 km2 (664 sq mi)|
|• Density||490/km2 (1,300/sq mi)|
|Time zone||UTC+8 (China Standard)|
Yinan (Chinese: 沂南县; pinyin: Yínán Xiàn; lit. 'Yi (River) south') is a county in the south of Shandong province, China. It is under the administration of the prefecture-level city of Linyi.
The population was 896,467 in 1999.
The only township is Mamuchi Township (马牧池乡)