The St. Marys River, St. Mary's River, or St. Mary River may refer to:

Canada

• St. Mary River (British Columbia), tributary of the Kootenay River
• St. Mary's River (Nova Scotia), an important Nova Scotia salmon river

United States

• St. Marys River (Florida–Georgia), forming a portion of the boundary between Georgia and Florida
• St. Marys River (Indiana and Ohio), tributary of the Maumee River
• St. Marys River (Maryland), tributary of the Chesapeake Bay
• Saint Marys River (Virginia), tributary of the South River

Multi-national

• St. Mary River (Alberta–Montana), tributary of the Saskatchewan River in Montana and Alberta
• St. Marys River (Michigan–Ontario), connecting Lake Superior and Lake Huron and forming a portion of the international boundary between the U.S. and Canada

See also

• Mary River (disambiguation)
• Marys River (disambiguation)
• Saint Maries River
• St. Mary's (disambiguation)

Topics referred to by the same term

This disambiguation page lists articles about distinct geographical locations with the same name.
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