Pingjiang County (simplified Chinese: 平江县; traditional Chinese: 平江縣; pinyin: Píngjiāng Xiàn) is a county in the northeast of Hunan province, China.

It is the easternmost county-level division of the prefecture-level city of Yueyang.

[citation needed] The Communist Marshal Peng Dehuai was a Kuomintang Colonel in 1928, when he was stationed in Pingjiang with orders to eliminate local groups of communist guerrillas who had fled to the area following Chiang Kai-shek's nationwide suppression of Communists.

Because Peng had secretly joined the Chinese Communist Party he instead kept his unit passive and began to organize local Communist Party branches.

Peng rebelled against the Kuomintang on 28 July 1928, beginning his career as a military leader in the Red Army from his base in Pingjiang.