Lansberg est un cratère de 40 Km et profond de 3110 m situé sur la mer des îles (Mare Insularum). Le cratère a une muraille élevée qui s’étend en terrasse à l’intérieur vers un fond plat, peu étendu, qui comporte une double montagne centrale.

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Lansberg is a lunar impact crater on the Mare Insularum. It can be located by following a line south-southwest from the Copernicus crater to Reinhold crater, then southwest to Lansberg. The crater has a high rim and a central mountain. There are terraces along the inner walls, and the tops have slumped to produce a sharp edge. This formation is not noticeably eroded, and there are no significant impact craters within the interior.

The crater is correctly spelled "Lansberg", but has frequently been written "Landsberg" instead.

To the southeast of Lansberg is the landing site of the Luna 5 probe.