FitzGerald is a large lunar impact crater on the far side of the Moon.

The younger satellite crater FitzGerald W is attached to the exterior along the northwest.

The inner walls display some indications of past slumping and terracing, although these features have become smoothed out with time.

The interior floor is a nearly level, featureless plain, with some slight irregularities to the northeast.

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