| อักษรย่อ | คำเต็ม | รายละเอียด |
| G.M. | General Manager | |
| G.M.T. | Greenwich Mean Time | |
| G.P.A. | Grade Point Average | |
| g/l | Gram per Litre | |
| G20 | Group of 20 | |
| G7 | Group of 7 | |
| G8 | Group of 8 | |
| GA | General Appearance | |
| GAT | General Aptitude Test | |
| GCS | Glas glow coma score | |
| GDP | Gross Domestic Product | |
| GDPR | General Data Protection Regulation | |
| GFT | Garment, Fabric and Textile | |
| GHB | Government Housing Bank | |
| GHz | GigaHertz | |
| GIF | Graphics Interchange Format | |
| GJ | Good job | |
| GL | Good luck | |
| GM | Good Morning | |
| GMO | Genetically Modified Organism | |
| GMP | Good Manufacturing Practice | |
| GMT | Greenwich Mean Time | |
| GN | Good Night | |
| GNASD | Good Night and Sweet Dreams | |
| GPRS | General Packet Radio Service | |
| GPS | Global Positioning System | |
| GPU | Graphics Processing Unit | |
| GRT | Great | |
| GSB | Government Savings Bank | |
| GSM | Global System for Mobile Communications | |
| GW | Good work | |
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