| Acronym | Sense | Language | Topics |
|---|---|---|---|
| UIT | Ultraviolet Imaging Telescope | In English | → Astronomy |
| UIT | Union Internationale des Télécommunications = ITU | International Telecommunication Union | In English = IUT | Internacia Unio pri Telekomunikado | In Esperanto |
In French | → Organizations and associations → Telecommunications |