Asuka Kazama (風間 飛鳥 Kazama Asuka?) is a character in the Tekken series who was first introduced in Tekken 5 and has returned for every subsequent game in the series. While she was originally purported to be the cousin of Jin Kazama and the niece of Jun Kazama, it has later been stated by Katsuhiro Harada (see below) that their relationship is more complicated than that. Asuka is surprisingly brash and arrogant.

Although her profile states that she breaks up fights regularly, she seems to have no qualms about fighting and seemingly revels in it despite being beautiful. In her story mode, after defeating her target, Feng Wei, she decides to remain in the tournament in order to "have fun". Her pre and post-match quotes also demonstrate her confidence. As stated in her Tekken 5 / Dark Resurrection prologue, Asuka is also known as being a "nosy kid" who likes to solve other people's problems, "usually by knockout".

Asuka speaks in Kansai dialect (Kansai is a region of western Japan encompassing major cities such as Kyoto, Osaka, and Kobe). Asuka is somehow related to Jun Kazama (Jin's mother) and is the rival of Emilie "Lili" De Rochefort. Since they first fought at the King of Iron Fist Tournament, Asuka felt that Lili was taking the whole rivalry nonsense a little too seriously. Asuka recalled Lili's phone call out of the blue a few days earlier: "Hello, Asuka. I am sure you have heard the news that the King of Iron Fist Tournament is starting again soon.

Worry not, I have already been gracious enough to register you for the competition. No trying to weasel out of it, you hear? I am ever so looking forward to fighting you." As Asuka let her rage toward Lili's presumptuousness fly down the phone, Lili hung up. Fed up of being treated like a rich girl's plaything, Asuka thought that maybe if she beat Lili, the conceited little princess would leave her alone. Then again, maybe not... Asuka wondered how she could resolve the situation but came up with nothing.

Eventually, she decided to go along with Lili's plan and enter the tournament. Ending Description: After defeating Lili, Asuka is shocked to find that her rival is planning on moving to her own home. As Asuka shouts at her to explain herself, Lili waltzes around saying that she will learn the Kazama Style Traditional Martial Arts and rebuild the dojo to its former glory. Asuka can only shout in protest, demanding an explanation and chase after Lili as they leave the arena.