Shangcai County (simplified Chinese: 上蔡县; traditional Chinese: 上蔡縣; pinyin: Shàngcài Xiàn) is a county in the south of Henan province, China.

It is under the administration of the prefecture-level city of Zhumadian.

In 2016 over 100 people were charged for a phone scam involving impersonating military personnel, with 'almost all of them holding a hukou from Shangcai County in Henan Province.'

This led to increased anti-Henan sentiment.

[3][4] As 2017, this county is divided to 4 subdistricts, 12 towns and 10 townships.