Stigmella thuringiaca is a moth of the family Nepticulidae. It is found from Germany, Poland and central Russia to the Iberian Peninsula and Italy. It is not found on the Balkan Peninsula.
The larvae feed on Agrimonia eupatoria, Filipendula, Fragaria moschata, Fragaria vesca, Fragaria viridis, Potentilla tabernaemontani and Sanguisorba minor. They mine the leaves of their host plant.