Galaxaura barbata is a species of Pacific marine algae belonging to the family Galaxauraceae. It is a critically endangered plant.
It was located at Post Office Bay, Isla Santa MarÃÂa, Galápagos Islands.
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