We humans love to name things, and that extends to the heavens as well. The International Astronomical Union (IAU) has a working group and several task groups whose responsibility it is to approve the official names of topographic features of the planets, satellites, and minor objects in our solar system. Current members are listed here:
You’ll find more information, search functionality, and alphabetical (alpha-beta-ical) lists of features at https://planetarynames.wr.usgs.gov/.
Incidentally, you might notice that many craters on Mercury are named after composers. Since many of the craters on the Moon are named after scientists, in fairness it was decided that many of the craters of Mercury (ostensibly similar to the Moon) should be named after composers, artists, writers, and others who have contributed to the arts and humanities. So there you have it!