The Fucaceae are a family of brown algae, containing six genera:
- Ascophyllum Stackhouse – one species
- Fucus L. – 15 species
- Hesperophycus Setchell & Gardner – one species
- Pelvetia Decne. & Thur. – one species
- Pelvetiopsis N.L.Gardner – two species
- Silvetia E.Serrão, T.O.Cho, S.M.Boo & S.H.Brawley – three species