U
- Ultimate Comics: X-Men (2011–present)
- Ultimate X-Men (2000–2009), revitalization of the team in the “Ultimate Marvel Universe”
- Uncanny X-Force vol. 1 (2010–2012), continued from X-Force vol. 3.
- Uncanny X-Force vol. 2 (2013–present)
- Uncanny X-Men vol. 1 (1981–2011), previously titled X-Men, vol. 1
- Uncanny X-Men vol. 2 (2011–2012)
- Uncanny X-Men vol. 3 (2013–present)
Read more about this topic: X-Men Archives