Windows Odyssey
| Version of the Windows NT operating system | |
| Developer | Microsoft | 
|---|---|
| Working state | Historic, never released | 
| Marketing target | Business | 
| Kernel type | Windows NT | 
| License | Non-disclosure agreement | 
| Support status | |
| Cancelled | |
Odyssey (also known as NT6) was the codename for a version of Microsoft Windows that was intended to succeed Windows 2000. The project was cancelled in early 2000 and later merged with Neptune to create Windows XP.