Chrétien is a lunar impact crater that is located in the southern hemisphere on the far side of the Moon from the Earth.

The crater has a low albedo interior floor, which has the same darker hue as the Mare Ingenii to the north.

At the southern end, the inner wall forms a wide, irregular surface while the damaged rim bulges outward to the south.

The crater was formally named in 1970 by the IAU after French mathematician and astronomer Henri Chrétien.

[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 Chrétien.