Hokiang, (Chinese: 合江; pinyin: Héjiāng) was a province in Northeast China, which was established in 1945.

It was c.52,300 sq mi (135,500 km²) in size and the provincial capital was Jiamusi.

From 698 to 936, the Mohe-ruled kingdom of Balhae (Bohai) occupied northern Korea and parts of Northeast China and Primorsky Krai, consisting of the Nanai, the Udege, and the Evenks and descendants of the Tungus-speaking people and the people of the recently fallen Goguryeo kingdom.

Hejiang settled at this moment by Northern Mohe tribes were submitted to Balhae Kingdom under King Mun and reign King Seon's reign (818-830) : King Seon administrated their territories by creating three prefectures : Balhae was an early feudal medieval state of Eastern Asia, which developed its industry, agriculture, animal husbandry, and had its own cultural traditions and art.

People of Balhae maintained political, economic and cultural contacts with the Tang dynasty, as well as Korea and Japan.