Faeroestygarctus dezioae is a species of armoured marine tardigrades. It is the only species of Faroestygarctus, a genus of the family Stygarctidae.
The genus name refers to the type locality: the Faroe Islands. It was described in 2012 by Jesper Guldberg Hansen, Reinhardt Kristensen and Aslak Jørgensen.