Santbech is a lunar impact crater that is located to the southeast of Mare Nectaris.

The terrain around the crater, although rugged in places, has been flooded by lava and so has a low albedo and a relatively flat surface.

There are small craters along the eastern and northwestern rim, and an asymmetrical formation along the southern inner wall.

Much of the interior floor is level and nearly featureless, with a small central peak offset to the north-northeast of the midpoint.

[2] By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Santbech.