Juncus balticus is a species of rush known by the common name Baltic rush. It is a perennial flowering plant in the family Juncaceae. It can reach a height of about 75 centimetres. It is native to north-western Europe from Spain to northern European Russia, most of North America except the south-eastern United States, parts of Mexico and Central America, and western and southern South America from Colombia to Argentina. It is available from specialist nurseries for landscaping and soil stabilization purposes.