Soo or SOO may refer to:

Places

Sault Ste. Marie, Ontario Sault Ste. Marie ( ) is a city in Ontario, Canada. It is at the St. Mary's River on the Canada–US border. It is the third largest city in Northern Ontario, after Sudbury and Thunder Bay. The Ojibwe, the indigenous Anishinaabe inhabitants of ...

, a border city in Canada nicknamed "The Soo" *

Sault Ste. Marie, Michigan Sault Ste. Marie ( ') is the only city in, and county seat of, Chippewa County in the U.S. state of Michigan. With a population of 13,337 at the 2020 census, it is the second-most populated city in the Upper Peninsula after Marquette. It i ...

, a border city in the United States also nicknamed "The Soo" **

Soo Locks The Soo Locks (sometimes spelled Sault Locks but pronounced "soo") are a set of parallel locks, operated and maintained by the United States Army Corps of Engineers, Detroit District, that enable ships to travel between Lake Superior and the low ...

, the locks between Lake Superior and the lower Great Lakes *

Soo Township, Michigan Soo Township is a civil township of Chippewa County in the U.S. state of Michigan. The population was 3,141 at the 2010 census. Communities * Neebish Island is separated from the township by waters of St. Marys River. Its hundred-odd permanent ...

, United States *

Soo, Kagoshima is a city located in northeastern Kagoshima Prefecture, Japan. It is near Miyakonojō, Miyazaki. As of April 2017, the city has an estimated population of 37,038 and a population density of 95 persons per km². This is down from the 2006 popu ...

, a city in Japan **

Soo District, Kagoshima is a district located in Kagoshima Prefecture, Japan. As of October 1, 2008, the district has an estimated population of 14,713 and a density of 146 persons/km2. The total area is 100.82 km2. The district has one town: * Ōsaki History ...

, a district in Japan * Sóo, a village in the Canary Islands *

Søo The Søo or Søa is a river in the municipality of Heim in Trøndelag county, Norway. The long river originates at Lake Søo (''Søvatnet''), which lies on the border of the municipalities of Orkland, Heim, and Rindal. The lake sits at an ele ...

, a river in Norway *

Soo River The Soo River is a tributary of the Green River in the Pacific Ranges of the Coast Mountains in British Columbia, Canada, joining that river just north of the Resort Municipality of Whistler. Approximately long, it begins on the south flank of t ...

, a tributary of the Green River in British Columbia, Canada *