| Acronym | Definition |
|---|
| SGIS➣Swiss Group of International Schools |
| SGIS➣Saint Gabriel International School (Manila, Philippines) |
| SGIS➣SkillStorm Government Integrated Solutions |
| SGIS➣Side Gliding in Standing (therapy) |
| SGIS➣Stabilized Glideslope Indicating System |
| SGIS➣Steam Generator Isolation Signal (US NRC) |
| SGIS➣Sad Girl in Snow (anime) |