Delisea

{{Short description|Genus of algae}}

{{automatic taxobox

| image = Delisea japonica - National Museum of Nature and Science, Tokyo - DSC07636.JPG

| image_caption = Delisea japonica (Delisea pulchra) at the National Museum of Nature and Science, Tokyo

| taxon = Delisea

| authority = J. V. Lamouroux, 1819

| subdivision_ranks = Species

| subdivision =

• Delisea compressa Levring 1955
• Delisea elegans J. V. Lamouroux 1819
• Delisea flaccida (Suhr) Papenfuss 1940
• Delisea hypneoides Harvey, 1859
• Delisea plumosa Levring 1955
• Delisea pulchra (Greville) Montagne 1844

}}

Delisea is a genus of red algae in the family Bonnemaisoniaceae.

The genus name of Delisea is in honour of French botanist and lichenologist Dominique François Delise (1780-1841).{{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 Jean Vincent Félix Lamouroux in Dict. Sci. Nat. (F. Cuvier) Vol.13 on page 41 in 1819.