Because his father thought that he have enough bad attention for having the nani tailed fox in him that is would make his life worse because people might think stuff like you killed your father or other questions like that?
Another reason would be because that Uzumaki was the clan and Kishimoto called the three of them the UZUMAKI family, NOT the NAMIKAZE....... in other words, Minoto joined the Uzumaki's, Kushina DIDN'T join the Namikaze....... Namikaze wasn't a clan, it never once stated that Namikaze was a clan, as such, Naruto is Uzumaki Naruto, NOT Namikaze
Naruto Uzamaki's fathers name is Minato Namikaze 4th Hokage.
He doesn't have one =3 same with Kakuzu...
Naruto's real full name is "Naruto Namikaze".. "Uzumaki" was from his mother, "Kushina Uzumaki".. His dad is The Fourth Hokage, "Minato Namikaze" ..
his dads
His dads last name is Styles like Harry. Harry never took his step dads last name... Yet.
because his dads last name was.
He doesnt have one yet.
because they do
from a kind of glass and that is his dads last name
His last name is Twist. Robin Twist.
If he has a last name, it hasn't been revealed yet. Most characters in Naruto only has one name.
She doesn't have a last name.