Transportation
- Main/Bergen County Line, a commuter rail line in the US state of New Jersey
- Manistee County-Blacker Airport (IATA/FAA code MBL), an airport in the US state of Michigan
- Montclair-Boonton Line, a commuter rail line in North Jersey in the US state of New Jersey
- Montebello Bus Lines, a local transit agency serving the San Gabriel Valley in Southern California
Read more about this topic: MBL