Grobnik may refer to:
- Grobnik, Primorje-Gorski Kotar County, Croatia, a village near Rijeka
- Grobnik Castle , a fortification in the village
- Grobnik Field, site of the legendary Battle of Grobnik Field
- Automotodrom Grobnik, a motorsport race track in the same field
- Grobničko Polje Airfield, an airfield in the same field
- Grobnik, Istria County, a village near Pićan, Croatia
- Grobnik, Karlovac County, a village near Slunj, Croatia
- Slats Grobnik, fictional columnist contributor