| Name | Ahnfeltia Fries |
| Authorship | Fries |
| Rank | Genus |
| Placed in | Ahnfeltiaceae |
| Contains | Ahnfeltia concinna J. Agardh Ahnfeltia gigartinoides J. Agardh Ahnfeltia plicata (Hudson) Fries Ahnfeltia sp. |
| Remarks | Lecytotype: A. plicata (Hudson) Fries (Fucus plicatus Hudson) (vide Ruprecht, Mem. Acad. Imp. Sci. Saint-Pétersbourg, Sér. 6. Math. 9, Seconde Pt. Sci. Nat. (Bot.): 41. 1851) |
| Citation | 1835 Fl. Scan. 1 (Fl. Scan.) 309 |