Delesseria is a genus of red algae belonging to the family Delesseriaceae.

[1] The genus has cosmopolitan distribution.

[1] The genus name of Delesseria is in honour of Jules Paul Benjamin Delessert (1773–1847), who was a French banker and naturalist.

[2] The genus was circumscribed by Jean Vincent Félix Lamouroux in Ann.

Hist.