Bombelli is a small lunar impact crater that is located in the highlands to the north of the Sinus Successus.

It was named after Italian mathematician Raphael Bombelli.

[1] It was previously designated Apollonius T. The crater Apollonius is located to the east-southeast.

Bombelli is a roughly circular crater with a slight outward protrusion to the south-southwest.

There is a small interior floor at the midpoint of the sloping interior walls, which is roughly one fourth the diameter of the crater.