MW
- mW – (s) Milliwatt
- MW
- (i) Maintenance of way (also MOW)
- (s) Malawi (ISO 3166 digram)
- (i) Medium Wave (radio)
- (s) Megawatt
- (i) Mountain West (Conference) (formal initialism since July 2011)
- MWC
- (i) Maritime Warfare Centre (various nations)
- Mountain West Conference (still used informally, although the league has adopted "MW")
- MWESH – (p) Machismo Wizards Extended SHelter (operating system)
- MWI – (s) Malawi (ISO 3166 trigram)
- MWK – (s) Malawian kwacha (ISO 4217 currency code)
- MWOA – (i) Mount Wilson Observatory Association
- MWR – (i) Morale, Welfare, and Recreation
- MWTB - (a) Mounted Warfare Test Bed
Read more about this topic: List Of Acronyms And Initialisms: M