| G | Guts 
| Others |
| G | Gypsum
| Others |
| G | Gzip
| Others |
| G | Large (French: grand)
| Others |
| G | Trader Joe's: Next to Godliness
| Others |
| G & A | Gloves and Apron
| Others |
| G 77 | Group of 77
| Others |
| G DUBS | George Washington - 1st president of USA
| Others |
| G SOC AM B | Geological Society Of America Bulletin
| Others |
| G SOC DUBLIN J | Geological Society Of Dublin Journal
| Others |
| G SOC GLAS TR | Geological Society Of Glasgow Transactions
| Others |
| G SOC PA TR | Geological Society Of Pennsylvania Transactions
| Others |
| G SOC TOKYO J | Geological Society Of Tokyo Journal
| Others |
| G&A | General and Administration Expenses
| Others |
| G&A | General and Administrative
| Others |
| G&A | General And Administrative Expense
| Others |
| G&A | Grief and Aggravation
| Others |
| G&C | Guidance and Control
| Others |
| G&LW | Gem & Lapidary Wholesalers
| Others |
| G&M | Garrison & Morton
| Others |
| G&MG | Gog & Magog
| Others |
| G&N | Guidance and Navigation
| Others |
| G&NS | Guidance and Navigation System
| Others |
| G&S | Gilbert and Sullivan
| Others |
| G&S | Grammar & Spelling
| Others |
| G&T | Gerlich and Tscheuschner
| Others |
| G&T | Gin & Tonic
| Others |
| g+ | Google +
| Others |
| g+ | Google Plus
| Others |
| G+ | Google+
| Others |
| G+O | gin and orange [juice]
| Others |
| G,DN | Global Medical Device Nomenclature
| Others |
| G-1 | Good One
| Others |
| G-3 | Deputy Assistant Chief of Staff Operations
| Others |
| G-4 | Assistant Chief of Staff For Logistics
| Others |
| G-5 | Group of Five
| Others |
| G-6 | Army or Marine Corps Component Command, Control, Communications, and Computer Systems Staff Officer
| Others |
| G-6 | Assistant Chief of Staff For Communications
| Others |
| G-6 | G-6 Great Garrulous Garbage Gutting Guillotine
| Others |
| G-6 | Generate a Gesture of Goodwill, Give a Gift of Gratitude
| Others |
| G-6 | Gulfstream-6
| Others |
| G-6-PD | Glucose-6- Phosphate Dehydrogenase
| Others |
| G-7 | Group of 7 Nations
| Others |
| G-7 | Group of Seven
| Others |
| G-7 | Information Operations Staff Officer (ARFOR)
| Others |
| G-8 | Group of Eight
| Others |
| G-A | Ground-to-Air
| Others |
| G-CASE | Georgia Council of Administrators of Special Education
| Others |
| G-CDF | granulocyte colony-stimulating factor
| Others |
| G-CSF | Granulocyte Colony Stimulating Factor
| Others |