Xanthoparmelia waboomsbergensis is a species of foliose lichen in the family Parmeliaceae.

It was formally described as a new species in 2002 by Australian lichenologist John Elix.

The type specimen was collected from the summit of Waboomsberg mountain (Cape Province) at an altitude of 1,220 m (4,000 ft).

The species epithet refers to the type locality, the only place the lichen is known to occur.

[1] The thallus of Xanthoparmelia waboomsbergensis has a somewhat crustose morphology, with a tight attachment to its substrate; its colour is pale yellow-green, reaching a diameter of up to 1.5 cm (0.6 in).