Gaoyang County (simplified Chinese: 高阳县; traditional Chinese: 高陽縣; pinyin: Gāoyáng Xiàn; lit.

'High Sun') is a county in the central part of Hebei province, People's Republic of China.

It is under the jurisdiction of the prefecture-level city of Baoding and has an area of 497 km2 (192 sq mi).

The county seat is in Gaoyang Town (高阳镇).

There are 4 towns and 5 townships under the county's administration.