Pakkun

is a petite pug and the smallest of Kakashi Hatake's Ninken. Pakkun is seemingly the most intelligent of the ninken, and has the ability to speak. When Pakkun, Naruto, and Sakura appear to help Sasuke in the battle against Gaara, he reveals that he is not a battle type ninja dog, which Sakura claims to know by looking at his small appearance. In the anime, he reveals that he uses Floral Green shampoo (Minty Rainforest Mist Shampoo with extra body in the English dub), which is also used by Sakura Haruno (Sakura is comically traumatized at the thought of using the same shampoo as a dog). When Pakkun is first summoned by Kakashi, he is assigned to lead Sakura, Naruto, and Shikamaru to Sasuke. In the anime, Shikamaru refuses to help in finding Sasuke, and Pakkun tells him if he completes this mission he will let him touch the pads on his feet. He claims they are really soft and supple. This offering is a reference to modern Japanese culture, in which a dog's paw is considered its cutest aspect; the idea of an animal's paw being "cute," however, applies mainly to puppies and kittens, because at birth their pads are pink, and as dogs grow older, they turn into a dirty black.
 * Name: Pakkun
 * Seiyu: Shinpachi Tsuji
 * Voice Actor: JB Blanc

Also in accordance to the anime, Pakkun was able to say Kakashi's name at four months of age. This implies that Kakashi's Ninken may have been all raised from a young age by him.

Pakkun makes his Part II debut during the Rescue Gaara arc, where he is summoned to track Gaara's scent. Kakashi dismisses him after his task is done because Pakkun believed that he would only be in the way of the mission if they fight the Akatsuki. He later appears in chapter 338 when he's summoned by Kakashi to help Sakura and Sai back up Shikamaru in his fight against Hidan. In Chapter 355 he once again returns, when Kakashi summons all eight of them in the search for Itachi.

In episode 20, Naruto is shown to have a Pakkun keychain, while closing the door to his home.