| Abbreviation | Definition |
|---|---|
| SGME | Mariscal Estigarribia, Paraguay |
| SGN | Tan Son Nhut Airport, Saigon, Vietnam |
| SGNA | Nueva Ascuncion, Paraguay |
| SGO | St. George, Queensland, Australia |
| SGOL | Olimpo, Paraguay |
| SGP | Shay Gap, Western Australia, Australia |
| SGPI | Pilar, Paraguay |
| SGPS | Ciudad Pres. Stroessner, Paraguay |
| SGQ | Sanggata, Indonesia |
| SGR | Sugarland, Texas USA |
| SGU | St. George, Utah USA |
| SGV | Sierra Grande, Argentina |
| SGW | Saginaw, Alaska (Saginaw, Michigan is HYX) |
| SGX | Songea, Tanzania |
| SGY | Skagway, Alaska USA |
| SGZ | Singora, Thailand |
| SHA | Shanghai, Mainland China |
| SHB | Nakashibetsu, Japan |
| SHC | Indaselassie, Ethiopia |
| SHCR | Cochrane, Chile |