| Acronym | Definition |
|---|
| UMB➣Ultra Mobile Broadband (CDMA Development Group and 3rd Generation Partnership Project 2; formerly CDMA 2000 1x EV-DO Revision C) |
| UMB➣University of Massachusetts Boston |
| UMB➣University of Maryland, Baltimore |
| UMB➣Univerzity Mateja Bela (Slovak: Matej Bel University) |
| UMB➣User Mode Bus |
| UMB➣Ultra Mobile Broadband |
| UMB➣Université Marc Bloch (French: Marc Bloch University; Strasbourg, France) |
| UMB➣Universitetet for Miljø- og Biovitenskap (Norwegian University of Live Sciences) |
| UMB➣U Mad Bro (gaming) |
| UMB➣Union Mondiale de Billard (World Billiards Union) |
| UMB➣Upper Memory Block |
| UMB➣Umbrian (linguistics) |
| UMB➣Upfront Mortgage Broker |
| UMB➣United Missouri Bank |
| UMB➣Ultrasound in Medicine and Biology (journal) |
| UMB➣Upper Mississippi Basin |