Ahnfeltia fastigiata
- kingdom: Plantae
- phylum: Rhodophyta
- class: Florideophyceae
- order: Ahnfeltiales
- family: Ahnfeltiaceae
- genus: Ahnfeltia
- species: Ahnfeltia fastigiata
- Nome
Alaska- Crescent City
- Montara
- Moss Beach
California- Brookings
Oregon
United States