Junan County (simplified Chinese: 莒南县; traditional Chinese: 莒南縣; pinyin: Jǔnán Xiàn) is a county of southern Shandong province, People's Republic of China, bordering Jiangsu province to the south.

Junan County has a total area of 1752 square kilometers.

Junan County is an important part of the Yimeng revolutionary base area, one of the four first-class revolutionary old areas in the province, hailed as the "Red Capital of Qilu" and the "Little Yan'an of Shandong Province".

[6] Junan County is a semi-humid continental climate in warm temperate monsoon area with continental degree of 61.1%.The average annual temperature is 12.7 °C, precipitation is 856.7mm, frost-free period is 200 days, and the average annual sunshine is 2434.6 hours.

Junan County's climate features: warm spring, dry and windy; humid summer, abundant rainfall; cool autumn, day and night temperature difference; cold winter, little rain and snow.Four distinct seasons, plenty of light, long frost-free period.