Sirenophila eos is a species of saxicolous (rock-dwelling), crustose lichen in the family Teloschistaceae.

[2] It was first formally described as a new species in 2007 by Sergey Kondratyuk and Ingvar Kärnefelt, as Caloplaca eos.

The type specimen was collected from rhyolite outcrops in New South Wales.

[3] Ulf Arup and colleagues transferred the taxon to the newly circumscribed genus Sirenophila in 2013, following a molecular phylogenetics-based restructuring of the Teloschistaceae.

[4]