Xena.....
Xena being herself
I love the name Xena for a dog. Not just for a boxer, but it seems that it suits the breed. I have a boxer named Xena, and the meaning of the name is "princess warrior" which seems to suit her because she is a spoiled princess and a strong headed fighter! Some other names I think work are Luca, Zoe, Luke, Fluke, Trigger, Gunner, Pouncer, and Goofy.