Rheita is a lunar impact crater located in the southwestern sector of the Moon.

It was named after Czech astronomer and optician Anton Maria Schyrleus of Rheita.

The southwestern rim overlies the edge of Vallis Rheita, a long lunar valley stretching for over 200 kilometers on a line running northeast to southwest.

The rim of Rheita remains well-defined with a sharp lip and a terraced inner wall.

[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 Rheita.