Named after Leonardo Vinci - Italian artist, inventor, mathematician (1452-1519).
Da Vinci is a lunar crater that is located in the eastern part , to the northwest of Mare Fecunditatis. It lies along the eastern shore of the Sinus Concordiae, a bay along the eastern edge of Mare Tranquillitatis. Nearby craters include Watts to the southeast and Lawrence to the southwest, both smaller in dimension than da Vinci. This formation has been heavily damaged and reshaped until it is scarcely recognizable as a crater. (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.