GBL could refer to:
- Good Bye Lenin Hostel Family of themed hostels in Kraków
- Gainsborough Lea Road railway station National Rail station code
- GAMCO Investors NYSE symbol
- Game Based Learning otherwise known as Serious Games
- Game Boy Light
- Greek Basket League
- Gamma-Butyrolactone, a chemical compound and central nervous system depressant
- Garden-based learning, programs, activities and projects in which the garden is the foundation for integrated learning
- GB Airways ICAO code
- Georgian Bay Line
- Gerber Bottom Layer in the Gerber File format
- Gigabit LAN or Gigabit Ethernet
- Golden Baseball League
- Groupe Bruxelles Lambert, a Belgian holding company
- Greater Brisbane League, top division baseball league in Queensland, Australia
gbl may refer to :
- Gamit language ISO 639:3 code
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