Xm or XM may refer to:
XM Satellite Radio, a US and Canadian radio company now merged into Sirius XM Holdings. XM (file format), a computer file format for music XM (album), a live-in-studio album recorded by Porcupine Tree BMW XM, a full-size luxury performance SUV made by BMW Citroën XM, a discontinued executive car made by Citroën C.A.I. First or Alitalia Express (IATA code XM, 1997-2005), an Italian airline A nonstandard Roman numeral for 990 (standard is CMXC) (6903) 1989 XM, a main belt minor planet Cross-matching of blood products
See also Includes several weapons and other military hardware Includes many shows broadcast on XM MX (disambiguation)