IM3

IM3 may refer to:


 * Bristol Pegasus I.M3, a British aero engine
 * Innocenti IM3, a BMC car model
 * Onchan, Isle of Man (Royal Mail postcode )
 * Im 3 (space group), a symmetry group; see List of space groups


 * Indosat Multimedia Mobile (IM3), a telecommunications subsidiary
 * Infamous Mobb (aka "IM3"), an American hip hop group
 * Intermediate 3 (IM3), a competition class under British Rowing