Feldmannia irregularis
- kingdom: Chromista
- phylum: Ochrophyta
- class: Phaeophyceae
- order: Ectocarpales
- family: Acinetosporaceae
- genus: Feldmannia
- species: Feldmannia irregularis
Welchman Hall
Saint Thomas
BarbadosHamilton
Hamilton city
BermudaTorres
Rio Grande do Sul
BrazilEbene
Plaines Wilhems
MauritiusPuerto Real
Cabo Rojo
Puerto RicoBognor Regis
EnglandCoylton
Scotland
United KingdomCruz Bay
Saint John Island
Virgin Islands, U.S.