'''MPIO''' may refer to:
==Science and technology== * Multipath I/O, in computer storage * Mpio or MPIO, a former Korean electronics manufacturer * Micron-sized particles of iron oxide, see Olfactory ensheathing cell#Labeling OECs
==Other uses== * Max Planck Institute for Ornithology, a former research institution in Bavaria, Germany
==See also== * MIMO, in radio
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