M1A1, M1-A1, M1 A1, or M-1A1 may refer to:

Military

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Other uses

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  • M1A1, a port of the computer game Marathon
  • "M1 A1", a song on the album Gorillaz by Gorillaz

See also

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  • M1 to A1(M), an extension of the M1 motorway in Yorkshire, England