Uzumaki
うずまき
Full name: うずまきナルト (Uzumaki Naruto)
Also hiragana only. The word uzumaki means whirlpool, and the spiral on the Leaf Village flak jackets is the same idea, but the name itself is never written in kanji.
Spelling checked against this reference.
There is no kanji here
This name is written in kana in the original, so it has no characters to take apart and no hidden meaning to find. Sites that show you kanji for it are showing you something the series never used.