Resnik (Serbian Cyrillic: Ресник) is an urban neighborhood of Belgrade, the capital of Serbia. It is located in Belgrade's municipality of Rakovica.

Resnik is a small lunar crater that is located within the interior of the huge Apollo impact basin, on the Moon's far side. Apollo is a double-ringed formation with a central floor that has been flooded with basaltic-lava. Resnik is located at the northern edge of the dark area of the surface.