Yangcheng County (simplified Chinese: 阳城县; traditional Chinese: 陽城縣; pinyin: Yángchéng Xiàn) is a county in the southeast of Shanxi Province, China, bordering Henan Province to the south.

It is under the administration of the prefecture-level city of Jincheng and located in the latter's southwest confines.

It is home to the AAAAA-rated House of the Huangcheng Chancellor.

In 2002, two EPB officials in Yangcheng County were sent to jail for failing to stop a chemical plant from putting toxic waste into the drinking-water system.

[2] The movie Inn of the Sixth Happiness is based on the story of Gladys Aylward's missionary activities in the county.