As far as anyone knows, Karin doesn't have a last name, and neither do Juugo or Suigetsu.
Currently the only living descendants of the Uzumaki is Naruto and Karin
from Naruto Shippuden Series
Crimson
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.
Did you mean Karin? If so, then she did not appear anywhere expcept the manga.
I think it's Kujyou because he is Karin's and Kazune's son.
Chapter 347
Karin is a common name found in several different anime's, in Naruto Shippuden the 2nd season of the original anime Naruto, there exists a character named after Karin. In Kamichama Karin, the main protagonist is also named after Karin. As well as, Chibi Vampire the main protagonist is also named after Karin. Although, all three characters are named Karin, this does not necessarily mean that the meaning is all the same. Due to written form of romanji the names cannot be distinguished but if written in kanji form, the name meanings all differ as it depends on the combination of Chinese characters.
Karin has glasses and red hair. To see a better description of her, go to www.naruto.wikia.com/wiki/Karin.
i do not know her last name
Okay,there might be a crossover in which TAKA (the new name for Hebi also known as Hawk) joined sides with the bad guys in bleach. Than Karin K. and Karin would fight and I could ramble on and on...