Microsoft XP may refer to:

• Windows XP editions, especially:
  • Windows XP Home and Professional Editions
  • Windows XP 64-Bit Edition (For Itanium processors)
  • Windows XP x64 Edition (For x86-64 processors)
  • Windows Server 2003, a product from the Windows XP era for server applications
  • Windows Fundamentals for Legacy PCs, a stripped-down version of Windows XP
• Microsoft Office XP, released prior to Windows XP, even though XP is better known to refer to the Windows OS

• AMD Athlon XP, a microprocessor marketed for Windows XP to run on, hence the name.

This disambiguation page lists articles associated with the title Microsoft XP.
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