| Acronym | Definition |
|---|
| MDNA➣Machinery Dealers National Association |
| MDNA➣Messe Düsseldorf North America (trade show organizer; Messe Düsseldorf Group of Companies; Chicago, IL) |
| MDNA➣Mitochondrial DNA (also seen as mtDNA) |
| MDNA➣Metal Detecting North America (online community) |
| MDNA➣Mobilehome Dealers National Association |
| MDNA➣Martin Drive Neighborhood Association (Milwaukee, WI) |