Grissom is a lunar impact crater that lies on the far side of the Moon.

It is located just to the south of the huge walled plain Apollo, and to the northeast of the crater Cori.

The rim of Grissom is eroded in places, particularly along the northeast where a pair of small craters lie along the sides.

The crater was named in 1970 by the IAU after astronaut Gus Grissom,[1] killed in the Apollo 1 fire.

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