Galaxaura barbata is a species of Pacific marine algae belonging to the family Galaxauraceae.

It is a critically endangered plant.

[2] It was located at Post Office Bay, Isla Santa María, Galápagos Islands.

[3] It was named by Ruth Chen-Ying Chou in "Pacific marine algae of the Allan Hancock Expeditions to the Galapagos Islands."

Allan Hancock Pacific Expeditions 12: i-iv [3][4]