Stigmella speciosa is a moth of the family Nepticulidae. It is found from Denmark to the Iberian Peninsula, Italy and Greece, and from Great Britain to Ukraine.
The wingspan is . Adults are on wing from May to August.
The larvae feed on Acer monspessulanum, Acer obtusatum, Acer opalus, Acer pseudoplatanus and Acer sempervirens, mining the leaves of their host plant.