MI-9

MI-9, MI9, MI 9 may refer to:

• MI9, British Military Intelligence Section 9
• Mi9 (company), an Australian digital media company, fully owned subsidiary of Nine Entertainment Co.
• Mil Mi-9, a variant of the Mil Mi-8 helicopter
• Michigan's 9th congressional district
• M-9 (Michigan highway), a former designation for portions of M-99
• M.I.9, a spy agency in the TV series M.I. High