Peyssonnelia dubyi
- kingdom: Plantae
- phylum: Rhodophyta
- class: Florideophyceae
- order: Peyssonneliales
- family: Peyssonneliaceae
- genus: Peyssonnelia
- species: Peyssonnelia dubyi
- France
Nortorf
Schleswig-Holstein
GermanyFreuchie
Scotland
United KingdomKey West
FloridaRocky Point
Tracyton
Washington
United States