D'Arrest is a lunar impact crater that is located in the lava-flooded region to the west of the Mare Tranquillitatis.
Just to the northeast are the small, bowl-shaped craters De Morgan and Cayley.
The interior has been resurfaced by lava, leaving a nearly flat, featureless floor.
The surviving rim is low and worn, with ridges connecting it to the south and southwest.
By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to D'Arrest.