UIT
UIT is an abbreviation for:
- (in capital letters) a Dutch road sign on motorways and motorways that corresponds to the German "AUSFAHRT" sign (literally: "from")
- Ultraviolet Imaging Telescope , a space telescope
- Union Internationale de Tir , from 1920 to 1998 the name of the International Shooting Sport Federation
- Union Internationale des télécommunications , the International Telecommunication Union
- Universitetet i Tromsø - Norges arktiske universitet , the northernmost university in the world, see University of Tromsø - Norway's Arctic University
- Untersee-Italien-Transport , Italian submarines that were taken over by the German Navy during the Second World War after the capitulation of fascist Italy and equipped as transport boats to the Far East (see: List of submarines confiscated or captured by Germany )
- Supportive post-implant therapy