Named after André Couder - French astronomer (1897-1979).
Couder is a small lunar impact crater that is located just behind the western limb , in a region of the surface that is brought into view during favorable librations. This region is devoid of major craters, with the nearest being Schlüter almost due east. Slightly farther to the south is Maunder, at the edge of the mare. (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.