Why is Naruto's name Naruto? I've been pondering this question because Shikamaru's name is from his dad's (Shikaku), Ino's name is from her dad's also (Inoichi); Shino is from Shibi and Choji is from Choza. Okay, maybe not all of the characters' names are from their dad's, but I'm just wondering. :D TIA
Naruto's father was Namikaze Minato, who had been Jiraiya's pupil.
As we know, Jiraiya wrote, and the main character of his first book was named Naruto.


  Because he enjoyed the book so much, Minato chose to name his then-unborn son after the character of Naruto in the story, in the hopes that his son would too grow up to be just like the protagonist. Even though Naruto was not aware of this until sixteen years after his birth, he nevertheless is just like the protagonist.


From Naruto Wikia.

So Naruto got his name from a character Jiraiya created in one of his books.