Hekou (Chinese: 河口; pinyin: Hékǒu; lit. 'river mouth') is a district of the city of Dongying, Shandong province, China. As of the census of 2010, there were 247,595 people, and 90,092 families residing in Hekou.

As of 2012^[update], this district is divided to 1 subdistrict, 3 towns and 3 townships.