MPX
# MPX

MPX may refer to:

## Technology

* MPX filter, a function found in cassette decks
* Multiplexing, the process of combining multiple analog or digital signals into one
   * Multiplexer, an electronic device which accomplishes this task

### Computing

* Multi-Pointer X, an extension to X.Org
* MPX Microsoft Project Exchange File Format, a Microsoft Project file format
* Intel MPX, a set of Memory Protection Extensions to the x86 instruction set architecture
* .mpx, a video file format in the Kingston K-PEX 100
* IBM 1800 MPX, in the list of operating systems
* MPX bus, a PowerPC CPU bus, for example in the PowerPC G4

## Other uses

* MPX Energia, former name of the Brazilian utility company Eneva
* MPI MPXpress, a train locomotive
* SIG MPX, a submachine gun from SIG Sauer
* An abbreviation for monkeypox, an infectious viral disease
