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