Cladophora montagneana
- kingdom: Plantae
- phylum: Chlorophyta
- class: Ulvophyceae
- order: Cladophorales
- family: Cladophoraceae
- genus: Cladophora
- species: Cladophora montagneana
- Manchioneal
- Port Antonio
Portland
Jamaica- San Pedro
California- Key West
Florida- North Bend
Oregon- Friday Harbor
Washington
United States