| Acronym | Definition |
|---|
| BCGS | Bonn-Cologne Graduate School of Physics and Astronomy (Germany) |
| BCGS | British Columbia Genealogical Society (Canada) |
| BCGS | British Columbia Geological Survey |
| BCGS | Baltimore Classical Guitar Society (Baltimore, MD) |
| BCGS | Berlin Consortium for German Studies (Columbia University; Berlin, Germany) |
| BCGS | Black Country Geological Society (est. 1975; UK) |
| BCGS | Bromley Common Golf Society (UK) |
