| Abbreviation | Definition |
|---|---|
| GPFC | Golden Point Football Club |
| GPFC | Grand Popo Football Club |
| GRFA | Geelong Regional Football Association |
| GRFL | Golden Rivers Football League |
| GRFU | Ghana Rugby Football Union |
| GRFU | Gibraltar Rugby Football Union Gibraltar Rugby Football Union |
| GRUFC | Glossop Rugby Union Football Club |
| GRUFC | Guernsey Rugby Union Football Club |
| GTFL | Greater Toronto Football League |
| GTFL | Greater Toronto Football League's |
| GTRFC | Georgia Tech Rugby Football Club |
| GTWRFC | Georgia Tech Women's Rugby Football Club |
| GUAGI | Go Up And Get It |
| GVFL | Goulburn Valley Football League |
| GWFC | Great West Football Conference |
| GYF | Glencoe Youth Football |
| GYFA | Glastonbury Youth Football Association |
| GYFA | Goffstown Youth Football Association |
| GYFA | Grandview Youth Football Association |
| GYFA | Gresham Youth Football Association |