Fucus filiformis
The species name Fucus filiformis may refer to:
- Fucus filiformis Hudson, 1762, synonym of Chondrus crispus var. filiformis (Gigartinaceae, Rhodophyta, Plantae)
- Fucus filiformis Strøm, 1762, synonym of Chorda filum (Chordaceae, Phaeophyceae, Chromista)
- Fucus filiformis S.G.Gmelin, 1768, nom. illeg. (Fucaceae, Phaeophyceae, Chromista)