Gaara is an Uzumaki(PROOF)
Gaara is an Uzumaki. He has red hair, great chakra reserves, he's pure hearted and we don't know what his last name is or are you saying that it's ''Of the Desert''?
Also it seems that Uzumakis were scattered all around the ninja world. Kushina was in the Leaf, Nagato was in the Hidden Rain, Karin was working for Orochimaru, so it wouldn't surpise me if there are Uzumakis in the Sand village too. Uzumakis are known of their sealing jutsus, and what we've seen Gaara doing during this war?
Naruto and Gaara have a close connection, coincidence?
Well I'm quite sure that he is Uzumaki.