MIK could refer to:
Methyl isopropyl ketone, a solvent FC MiK Kaluga, former Russian football team, now merged into FC Kaluga MIK (character set), a Bulgarian character code set used with DOS Multiple-Indicator Kriging, a statistical interpolation method Montazhno-Ispytatelnyi Kompleks, the Roscosmos assembly-test facility for space vehicles Mixed In Key, a Windows and Macintosh software that simplifies harmonic mixing
Transport MIK, MTR station code for Ming Kum stop, Hong Kong MIK, National Rail station code for Micklefield railway station, England MIK, IATA code for Mikkeli Airport, Finland