Gačnik (pronounced [ˈɡaːtʃnik]) is a settlement in the Municipality of Pesnica in northeastern Slovenia.

It lies in the western part of the Slovene Hills (Slovene: Slovenske gorice) in the valley of Gačnik Creek (Slovene: Gačniški potok), a minor tributary of the Pesnica River.

The area is part of the traditional region of Styria.

[2] A small roadside chapel-shrine in the settlement dates to 1803.

This article about the Municipality of Pesnica in Slovenia is a stub.