| China Standard (UTC+8)|
| People's Republic of China|Mengyin County Wikipedia
Mengyin County (simplified Chinese: 蒙阴县; traditional Chinese: 蒙陰縣; pinyin: Méngyīn Xiàn) is a county of southwestern Shandong province, People's Republic of China. It is under the administration of Linyi City.
The population was 524,565 in 1999.