Hekou, meaning river mouth or estuary, is a common place name in China and may refer to the following in China:
Districts (河口区) Hekou District, Dongying, Shandong
Counties (河口县) Hekou Yao Autonomous County (河口瑶族自治县), of Honghe Hani and Yi Autonomous Prefecture, Yunnan
Towns (河口镇) Hekou, Huoqiu County, in Huoqiu County, Anhui Hekou, Foshan, in Sanshui District, Foshan, Guangdong Hekou, Luhe County, in Luhe County, Guangdong Hekou, Yangchun, in Yangchun City, Guangdong Hekou, Yunan County, in Yunan County, Guangdong Hekou, Dawu County, Hubei, in Dawu County, Hubei Hekou, Huangshi, in Xisaishan District, Huangshi, Hubei Hekou, Xiangtan County, in Xiangtan County, Hunan Hekou, Pei County, in Pei County, Jiangsu Hekou, Rudong County, in Rudong County, Jiangsu Hekou, Yanshan County, in Yanshan County, Jiangxi Hekou, Feng County, in Feng County, Shaanxi Hekou, Jiangyou, in Jiangyou City, Sichuan Hekou, Rong County, Sichuan, in Rong County, Sichuan Hekou, Wanyuan, in Wanyuan City, Sichuan Hekou, Yajiang County, in Yajiang County, Sichuan Hekou, Hekou County, in Hekou Yao Autonomous County, Yunnan Hekou, Xundian County, in Xundian Hui and Yi Autonomous County, Yunnan
(合口镇) Hekou, Linli, a town in Linli County, Hunan Province, China
Townships (河口乡) Hekou Township, Lanzhou, in Xigu District, Lanzhou, Gansu Hekou Township, Daozhen County, in Daozhen Gelao and Miao Autonomous County, Guizhou Hekou Township, Jinping County, in Jinping County, Guizhou Hekou Township, Shunping County, in Shunping County, Hebei Hekou Township, Yuan'an County, in Yuan'an County, Hubei Hekou, Sangzhi, in Sangzhi County, Hunan Hekou Township, Lan County, in Lan County, Shanxi Hekou Township, Huili County, in Huili County, Sichuan Hekou Township, Renshou County, in Renshou County, Sichuan
Villages (河口村) Hekou Village in Togtoh County, Inner Mongolia
Subdistricts (河口街道) Hekou Subdistrict, Yunfu, in Yuncheng District, Yunfu, Guangdong Hekou Subdistrict, Baishan, in Hunjiang District, Baishan, Jilin Hekou Subdistrict, Dongying, in Hekou District, Dongying, Shandong
Other uses Hekou Group, geological formation in Gansu