Ecklonia

{{Short description|Genus of seaweeds}}

{{Automatic taxobox

| image = Brown algae hi.jpg

| image_caption= Ecklonia cava

| taxon = Ecklonia

| authority = J.W. Hornemann, 1828{{cite journal | last=Hornemann | first=J.W. | year=1828 | title=Om Fucus buccinalis Lin. | journal=Kongelige Danske Videnskabernes Selskabs Naturvidenskabelige og Mathematiske Afhandlinger | volume=3 | pages=379–390}}

| type_species = Ecklonia buccinalis

| type_species_authority = (Linnaeus) Hornemann{{AlgaeBase genus|name=Ecklonia|id=35713}}

| subdivision_ranks = Species

| subdivision =

see text

}}

Ecklonia is a genus of kelp (brown algae) belonging to the family Lessoniaceae.

The genus name of Ecklonia is in honour of Christian Friedrich Ecklon (1795–1868), who was a Danish botanical collector and apothecary.{{cite book | last=Burkhardt | first=Lotte | title=Eine Enzyklopädie zu eponymischen Pflanzennamen |trans-title=Encyclopedia of eponymic plant names | publisher=Botanic Garden and Botanical Museum, Freie Universität Berlin | year=2022 | isbn=978-3-946292-41-8 | url=https://doi.org/10.3372/epolist2022|format=pdf |language=German |location=Berlin | doi=10.3372/epolist2022 |access-date=January 27, 2022}}

The genus was circumscribed by Jens Wilken Hornemann in Kongl. Danske Vidensk. Selk. Naturvidenskab. Math. Afh. Vol.3 on pages 385–388 in 1828.