Named after Count Allessandro Guiseppe Antonio Anastasio Volta - Italian physicist (1745-1827).
Volta is a lunar crater near the northwest limb. It is located south-southeast of the crater Xenophanes, and due north of the smaller Galvani. The crater Regnault lies across the western rim. Attached to the southwest rim and the southern rim of Regnault is Stokes. (wikipedia entry)
A crater is a circular depression likely created by an impact event. On the Moon they are named after deceased scientists, polar explorers, astronauts or cosmonauts.