For MTM we have found 295 definitions.; What does MTM mean? We know 295 definitions for MTM abbreviation or acronym in 8 categories. Possible MTM meaning as an acronym, abbreviation, shorthand or slang term vary from category to category. Please look for them carefully. MTM Stands For: All acronyms (295) Airports Locations (3) Business Finance (20) Common (5) Government Military (19 ...