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 Xiaomi Mi 9, an Android phone