Wu River
Wu is the atonal romanization of several Chinese river names, chiefly  (Wū or Wù Jiāng), meaning "Raven", "Crow", or "Black River". It may refer to:

Mainland China
 Wu River (Yangtze tributary), a tributary of the Yangtze in Guizhou and Chongqing
 Wu River (㵲水), a tributary of the Yuan River in Guizhou and Hunan
 Wu River (巫水), another tributary of the Yuan River in Hunan, downstream of the other
 Wu River (Guangdong), a tributary of the Bei River in Guangdong
 Wu River (Zhejiang), another name for the Jinhua River in Zhejiang
 Wu River (Jiangxi), another name for the upper reaches of the Le'an River in Jiangxi
 Wu River (Salween), a former name of the upper reaches of the Salween in Tibet and Yunnan

Taiwan
 Wu River (Taiwan), another name for the Dadu River

See also
 Wu (disambiguation)
 Heihe, a Chinese city whose name means 'Black River'
 Ruo Shui, formerly known as the Hei ('Black River')
 Heishui (disambiguation), other Chinese rivers whose name mean 'Black River'
 Black River (disambiguation)
 Crow River (disambiguation)
 Raven River