MI-1 may refer to:

• Mil Mi-1, helicopter
• {{ushr|Michigan|1}}
• M-1 (Michigan highway)
• Mission: Impossible, 1996 film
• MI1, British Military Intelligence Section 1

• Henry Wetherby Benchley
• Henry W. Goddard
• Henry W. Grady College of Journalism
• Henry W. Grady College of Journalism and Mass Communication
• Henry W. Grady College of Journalism and Mass Communications
• Henry W. Grady School of Journalism and Mass Communications
• Henry W. Hahn
• Henry W. Harrington
• Henry Wharton Shoemaker
• Henry Wheeler ("Josh Billings") Shaw
• Henry Wheeler Robinson
• Henry W. Hilliard
• Henry White
• Henry White, 1st Baron Annaly
• Henry White Beeson
• Henry White (British politician)
• Henry White (diplomat)
• Henry White (disambiguation)
• Henry White (footballer, born 1895)
• Henry White (politician)
• Henry White Warren
• Henry Whitfield
• Henry Whitfield House
• Henry Whiting
• Henry Whitney Bellows