| Acronym | Definition |
|---|
| UGIS➣Unione Giornalisti Italiani Scientifici (Italian: Italian Scientific Journalists Union; est. 1966) |
| UGIS➣UniCredit Global Information Services (UniCredit Group) |
| UGIS➣Upper Gastrointestinal Series |
| UGIS➣Ugliest Girl in School |
| UGIS➣Undergraduate and Interdisciplinary Studies (university department) |