Giełczyn may refer to the following places:
- Giełczyn, Masovian Voivodeship (east-central Poland)
- Giełczyn, Łomża County in Podlaskie Voivodeship (north-east Poland)
- Giełczyn, Mońki County in Podlaskie Voivodeship (north-east Poland)
|This disambiguation page lists articles about distinct geographical locations with the same name.
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