Named after Theodor Svedberg - Swedish chemist, Nobel Prize winner 1926 (1884-1971).
Svedberg is a lunar impact crater located on the lunar near side near the southern pole. The crater is located Northeast of Scott crater, adjacent to von Baeyer crater, and South of the prominent crater Demonax. (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.