Calymene Brongniart, 1822, is a genus of trilobites in the order Phacopida, suborder Calymenina, that are found throughout North America, North Africa, and Europe in primarily Silurian outcrops.

[2] Calymene is closely related to Flexicalymene, and both genera are frequently found enrolled.

The cephalon is the widest part of the animal and the thorax usually has 13 segments.

Calymene - meaning beautiful crescent as a reference to the glabella.

Since the genus Calymene was established early on in paleontology, a number of species previously assigned to it have since been transferred to other genera:[9]