GBK may refer to:
Sport
- GBK Kokkola, a Finnish football club
- Gentofte BK, a Danish badminton club
- Gråå BK, a Swedish volleyball club
Other uses
- GBK (character encoding)
- Gabon Airlines
- Gbangbatok Airport, in Sierra Leone
- Gelora Bung Karno Stadium, an Indonesian sport stadium
- Gourmet Burger Kitchen, a British restaurant chain
- Grand Belial's Key, an American National Socialist black metal band
- Gulf Bank of Kuwait
- Mandeali language
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