Marais des Cygnes

Marais des Cygnes (Swans marsh in English) may refer to:


 * Marais des Cygnes massacre prior to the American Civil War
 * Marais des Cygnes Massacre Memorial Park a Kansas state historic site near that commemorates the 1858 massacre of the same name
 * Battle of Marais des Cygnes during the American Civil War
 * Marais des Cygnes National Wildlife Refuge in Kansas in the United States
 * Marais des Cygnes River in Kansas and Missouri in the United States