Greek; goat-god, son of Amalthea and Hermes in some legends, also Zeus' foster brother.
Pan is the largest crater on Jupiter's moon Amalthea. (wikipedia entry)
A crater is a circular depression likely created by an impact event. On Amalthea they are named after people and places associated with the Amalthea myth.
Sorry, there hasn't been a good map made for this world yet :(