MI-3

MI-3 may refer to:


 * Mission: Impossible III
 * Michigan's 3rd congressional district
 * M-3 (Michigan highway)
 * MI3, branch of British military intelligence
 * Mil Mi-3 aircraft
 * Xiaomi Mi3, a smartphone
 * mi3 or cubic mile
 * The Curse of Monkey Island (also known as Monkey Island 3), videogame