Red River usually refers to one of the following: . Red River (Asia) (Chinese: 紅河, 红河, Hóng Hé; Vietnamese: Sông Hồng) in China and Vietnam Red River of the North in Canada and the United States; Red River of the South, a tributary of the Mississippi in Texas, Oklahoma, Arkansas, and Louisiana in the United States; Red River may also refer to: ...

Grey River may refer to: . Grey River (New Zealand), a major river in the west of New Zealand's South Island. Grey River (Victoria), Australia Grey River, Newfoundland and Labrador, Canada; Grey River (Chile) See also. Little Grey River, a tributary of the Grey River, in New Zealand; Gray River, Fiordland, New Zealand; Greys River, a tributary of the Snake River, in the United States