Myotis mystacinus is a small bat recorded mainly in Europe. It also uses open places such as parks, towns, and gardens, and has conspicuously long ears.
The upper fur is dark nut-brown to grayish brown, while the underside is gray. Its ears are long and pointed, with a notch near the tip.
It is found in open habitats and has been recorded in parks, towns, and gardens.
An extinction-risk assessment has not been added yet.