thumb|right|[[Lunar Reconnaissance Orbiter|LRO image of Kies and Kies Pi (lower left), a small lunar dome]]
thumb|right|240px|Oblique view from [[Apollo 16]]
Kies is the remnant of a lunar impact crater that has been flooded by basaltic lava, leaving only a remnant of the outer rim. It was named after German mathematician and astronomer Johann Kies.