Nina Williams (Japanese: ニーナ・ウィリアムズ, Hepburn: Nīna Wiriamuzu) is a character from Namco's Tekken fighting game series.

She dresses primarily in purple fitted costumes and is commonly seen wearing a military-style outfit to suit her occupation.

[10] In Tekken Tag Tournament, she was noted as "feared by many players" due to her many combos that are difficult to counter, but her command list has a high execution barrier; she is a challenge, requiring a lot of practice to master.

[14][15] In Tekken 4 (2001), Nina is contracted to kill British boxer Steve Fox, but abandons the mission upon discovering he is her son.

[25][26] Kotabukiya released a bishōjo figure of Nina from Tag Tournament 2 designed by Shunya Yamashita for the 20th anniversary of Tekken in 2014.

"[32] James Mielke of GMR meanwhile heavily praised her attractiveness and purple jumpsuit outfit, and saw her as deviating from the "myth" of fighting game characters as "two-dimensional cutouts".

She emphasized how well the character's story was fleshed out through the course of the series which she described as part "soap opera, anime, drama, toy commercial" that often relied on the player to piece the elements together.

[35] University of Delaware professor Rachael Hutchinson meanwhile felt that Nina took design cues from Sarah, following the template of a female character with a "tall frame, blond hair and jutting breasts".

[37] On the other hand, the paper "Kawaii Killers and Femme Fatales" published in the Journal of Broadcasting & Electronic Media cited Nina as an example of a "vamp" archetype, a display of hostile sexuality in character design, in particular due to her characterization in Death by Degrees.

Describing her as physically representing a femme fatale due to how her skintight attire illustrated her as using her body as "both object and weapon" against multiple male enemies, the authors pointed out in contrast her narrative never had her employ her sexuality as a means to an end.

Instead of being explored, they felt her sexual display was "paper thin", and while she was portrayed with masculine traits of power and violent actions they saw it as undermined by her body becoming more exposed as the game progressed.