Also known as M-81
M81 or M-81 may refer to:
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M81 or M-81 may refer to: M-81 (Michigan highway), a state highway in Michigan McDonnell-Douglas MD81 Messier 81, a spiral galaxy in the constellation Ursa Major, also known as NGC 3031 or Bode's Galaxy U.S. Woodland, a camouflage pattern colloquially known by the name as "M81"