Huantai County (simplified Chinese: 桓台县; traditional Chinese: 桓台縣; pinyin: Huántái Xiàn) is a county of Zibo City in north-central Shandong province, People's Republic of China.

It is located 17 kilometres (11 mi) north of downtown Zibo.

The population in 1999 was 482,683.

[1] As 2012, this County is divided to 11 towns.

[2]