Grabnik may refer to the following places:

• Grabnik, Gmina Adamów in Lublin Voivodeship (east Poland)
• Grabnik, Gmina Krasnobród in Lublin Voivodeship (east Poland)
• Grabnik, Podlaskie Voivodeship (north-east Poland)
• Grabnik, Grodzisk Mazowiecki County in Masovian Voivodeship (east-central Poland)
• Grabnik, Ostrołęka County in Masovian Voivodeship (east-central Poland)
• Grabnik, Warsaw West County in Masovian Voivodeship (east-central Poland)
• Grabnik, Ełk County in Warmian-Masurian Voivodeship (north Poland)
• Grabnik, Mrągowo County in Warmian-Masurian Voivodeship (north Poland)

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