Polysiphonia hendryi
- kingdom: Plantae
- phylum: Rhodophyta
- class: Florideophyceae
- order: Ceramiales
- family: Rhodomelaceae
- genus: Polysiphonia
- species: Polysiphonia hendryi
- Nanaimo
- Prince Rupert
- Sooke
- Tofino
- Victoria
British Columbia
Canada- Sitka
Alaska- Isla Vista
- Pacifica
- San Pedro
California
United States