Galaxaura is a genus of thalloid red algae.

Dichotomous branches are formed; the medulla has a filamentous construction.

It may be related to the fossil Gymnocodiaceae.

[1] The genus has cosmopolitan distribution.

[2] As accepted by WoRMS and AlgaeBase;[3][4] There are plenty of former Galaxaura species that are now synonyms of other genera.