The meaning of the Acronym UMM is...

UMM is

• Unholy Men Of Mars
• Undefined Mad Men

More Meanings For UMM:

• Unified Markov Model
• University of Maine at Machias
• University of Minnesota Morris
• Unholy Men Of Mars
• Undefined Mad Men
• Urban Male Magazine
• United Methodist Men
• Summit, Alaska USA

UMM is also in:

• Airport Codes
• Funnies
• Mathematics
• Media
• Religion
• Universities