* Japanese Name: 西井幸人
* Romaji Name: Nishii Yukito
* Nick Name: Nishi-Kun, Yukito
* Born: June 14, 1995
* Birthplace: Saitama Prefecture, Japan
* Blood Type: O
* Nationality: Japanese
* Member of group: D2BOYS
* Profession: actor
* Agency: Watanabe
Trivia
* Favorite Foods: Strawberries, Tomatoes, Cherries, Kiwi, Ramen, Taiyaki, Doughnut, Cake
* Favorite colors: Light blue, Orange, and Yellow
* Special skills: relay race, acrobatic flip
Movies
- Wolf Children | Okami Kodomo no Ame to Yuki (2012) - voice
- Drucker in the Dug-Out | Moshi Koko Yakyu no Joshi Manager ga Drucker no Management wo Yondara (2011) - Yunosuke Sakurai
- Confessions | Kokuhaku (2010)
TV Dramas
- Kuro no Onna Kyoushi (TBS / 2012) - Junpei Sugimoto
- Teen Court | Teen Court ~10-dai no Saiban~ (NTV / 2012) - Yuichiro Konoe (ep.5-6)
- Hanazakari no Kimitachi e 2011 (Fuji TV / 2011) - Nakao Senri
- Suzuki Sensei (TV Tokyo / 2011) - Misaki
TV Movies
- Byakotai (TV Tokyo / 2013) - Motaro Ibuka