Sittisax is a genus of spiders in the family Salticidae (jumping spiders).
Sittisax is one of a number of genera that were split off from the broadly defined genus Sitticus (now Attulus) by Jerzy Prószyński in 2016 and 2017. Sittisax was erected in 2017, with the type species Euophrys saxicola. The generic name is derived from the first parts of the generic and specific names of Sitticus saxicola, the name used for the type species before transfer to Sittisax.
, the World Spider Catalog accepted the following species: