Named after Vojtech Šafařík - Czechoslovakian astronomer (1829-1902).
Šafařík is a small lunar impact crater on the far side. It lies due north of the crater Tiselius and to the east-southeast of Sharonov. This is a worn and eroded crater with smaller impacts along the rim to the east and northwest. The remainder of the worn rim and the interior are featureless. (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.