Roseau is the capital of Dominica.
Roseau, Roseaux or Rosseau may also refer to:
Roseau A type of common reed, or phragmite Roseau River (Dominica), the river that runs through the city Roseau, Saint Lucia, a town on the island Roseau Valley, in St. Lucia Roseau River (Saint Lucia), a river in Saint Lucia Roseau, Minnesota, a city in Roseau County, Minnesota, USA Roseau Lake, a lake in Roseau County, Minnesota, USA Roseau County, Minnesota Roseau River Anishinabe First Nation, in Manitoba, Canada Roseau River (Manitoba), a tributary of the Red River of the North in Manitoba and Minnesota
Roseaux (plural of Roseau in French) Roseaux, municipality in the Corail Arrondissement, in the Grand'Anse Department of Haiti Roseaux (band), French music project Roseaux (album), debut album of above band
Rosseau Rosseau, Cavaellon, Haiti, a village in Haiti Rosseau, Ohio, an unincorporated community Rosseau, Ontario, a community in Ontario, Canada Lake Rosseau, a lake in Ontario, Canada Gail Rosseau, an American surgeon Jacques Rosseau, a French canoeist