Dictyota crenulata
- kingdom: Chromista
- phylum: Ochrophyta
- class: Phaeophyceae
- order: Dictyotales
- family: Dictyotaceae
- genus: Dictyota
- species: Dictyota crenulata
Welchman Hall
Saint Thomas
BarbadosHamilton
Hamilton citySaint George
Saint George
BermudaLos Llanos de Aridane
Tazacorte
Canary Islands
SpainHonolulu
Kailua
Mākaha Valley
Wai‘anae
Hawaii
United StatesSaint Croix
Saint Croix Island
Virgin Islands, U.S.