| Abbreviation | Definition |
|---|---|
| NGCA | North Georgia Christian Academy |
| NGFS | New Garden Friends School |
| NGHS | Napier Girls' High School |
| NGHS | Nasirabad Government High School |
| NGHS | Newport Girls High School |
| NGHS | North Garland High School |
| NGHS | North Greene High School |
| NGHS | North Gwinnett High School |
| NGHS | Northern Guilford High School |
| NGHS | Northlands Girls' High School |
| NGIS | New Gateway International School |
| NGMS | National Guard Military School |
| NGMS | Natomas Gateways Middle School |
| NGMS | Noel Grisham Middle School |
| NGMS | North Garner Middle School |
| NGMS | North Gwinnett Middle School |
| NGMS | Northern Granville Middle School |
| NGMS | Northern Guilford Middle School's |
| NGPS | New Gisborne Primary School |
| NGPS | New Gisborne Primary School's |