MFD
# MFD

MFD may refer to:

## Fire departments

* Madison Fire Department, US
* Minneapolis Fire Department, US
* Milwaukee Fire Department, US
* Mumbai Fire Brigade, India

## Science, technology, and medicine

* Macroscopic Fundamental Diagram, a type of fundamental diagram of traffic flow in transportation engineering
* Microfarad, a unit of electrical capacitance sometimes written as "MFD"
* Minimum focus distance, in macro photography
* Mode field diameter, an expression of distribution of the irradiance, across the end face of a single-mode fiber
* Modular function deployment, a method for product modularization
* Multifunction display, an interactive system for presenting various information
* Mutation Frequency Decline, a gene/gene product used in transcription-coupled repair

### Computing

* Multifunction device, an office all-in-one device (copier, printer, scanner)
* Micro Floppy Disk, the 3½-inch floppy disk format; See History of the floppy disk
* Mini Floppy Disk, the 5¼-inch floppy disk format; See History of the floppy disk

### Hiring

* m/f/d, an initialism welcoming "male, female and disabled (or diverse)" candidates.

### Transportation

* Mansfield Lahm Regional Airport (IATA airport code)
* Minoan Flying Dolphins, a Greek ferry company
