Named after Antonin Bečvář - Czechoslovakian astronomer (1901-1965).
Bečvář is a lunar crater that is located near the equator on the far side from the Earth. It lies to the northeast of the crater Necho, within that feature's ray system. To the north-northeast is the crater Gregory. This is a worn, eroded crater system with a few tiny craterlets lying across the floor and rim. (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.