Hildenbrandia rubra
- kingdom: Plantae
- phylum: Rhodophyta
- class: Florideophyceae
- order: Hildenbrandiales
- family: Hildenbrandiaceae
- genus: Hildenbrandia
- species: Hildenbrandia rubra
Yarmouth
Nova Scotia
Canada- France
Nortorf
Schleswig-Holstein
GermanyFreuchie
Saint Andrews
ScotlandPontycymer
Wales
United KingdomBolinas
Montara
Moss Beach
Santa Cruz
CaliforniaBridgeport
ConnecticutRockland
MaineEast Falmouth
Marblehead
Nahant
MassachusettsCold Spring Harbor
Laurel Hollow
Pelham Manor
New York
United States