Dirina cretacea is a species of saxicolous (rock-dwelling), crustose lichen in the family Roccellaceae.

Its distribution is largely in the eastern Mediterranean, and in Andalusia, Spain.

It was formally described as a new species in 1899 by Alexander Zahlbruckner as a member of the genus Chiodecton.

[3] The lichen has a whitish-grey thallus (0.3–1.0 mm thick) lacking soralia, and a chalk-like medulla.

Its ascomata have a circular outline and a diameter of up to 3.8 mm; the apothecial disc is also white grey with a layer of pruina, and is surrounded by a thalline margin.