is a masculine Japanese given name.

Written forms Kazuya can be written using different kanji characters and can mean: 一八, "one, eight" 一矢, "one, arrow" 一也, "one, to be" 一夜, "one, night" 和也, "harmony, to be" 和矢, "harmony, arrow" 和哉, "harmony, particle" 和夜, "harmony, night" 冬也, "winter, to be" 冬夜, "winter, night" The name can also be written in hiragana or katakana.

People with the name Kazuya Abe, Japanese mixed martial artist , Japanese slalom canoeist , Japanese sport wrestler Kazuya Fujita (一也), Japanese professional baseball infielder Kazuya Fukuura (和也), Japanese professional baseball first baseman Kazuya Hatayama (和也), Japanese politician Kazuya Hiraide (和也), Japanese ski mountaineer and mountain climber Kazuya Ichijō (和矢), Japanese voice actor , Japanese footballer , Japanese footballer Kazuya Kamenashi (和也), Japanese singer–songwriter, actor and member of J-pop idol group KAT-TUN Kazuya Kaneda (和也), Japanese swimmer , Japanese mathematician Kazuya Kawabata (和哉), Japanese football player , Japanese author of Mai, the Psychic Girl and Pineapple Army Kazuya Kojima (一哉), Japanese comedian and actor Kazuya Kuroda (和也), Japanese animator, character designer and illustrator Kazuya Maekawa (和也), Japanese football player Kazuya Maruyama (和也), Japanese politician, attorney, and tarento Kazuya Minekura (かずや), Japanese manga artist Kazuya Murata (和哉), Japanese football player Kazuya Nakai (和哉 born 1967), Japanese voice actor Kazuya Oshima (和也), Japanese racing driver Kazuya Okazaki (和也), Japanese former professional racing cyclist , Japanese footballer , Japanese futsal player , Japanese film and television director Kazuya Takahashi (和也), Japanese actor Kazuya Takamiya (和也), Japanese professional baseball pitcher , Japanese water polo player Kazuya Tatekabe (和也 1934–2015), Japanese voice actor Kazuya Tsurumaki (和哉), Japanese anime director Kazuya Tsutsui (和也), Japanese professional baseball pitcher Kazuya Yamada (born 2001), Japanese speed skater Kazuya Yamamura (和也), Japanese football player Kazuya Yoshioka (和也), Japanese ski jumper

Fictional characters Kazuya Amon (亜門 一也), a secret character from the game Yakuza 2 Kazuya Aoi, main character of Freezing Kazuya Aoike (和也), a supporting character in Boys Over Flowers. Kazuya Aoshima (カズヤ), one of the main characters from Little Battlers Experience Kazuya Hiramaru (一也), supporting character from Bakuman Kazuya Ikuta (和也), minor character in episode 34 & 35 on Kamen Rider Kuuga Kazuya Kinoshita (和也), main character of Rent-A-Girlfriend Kazuya Maeda (一也), main character of Photo Kano Kazuya Minegishi (一哉), main character of Devil Survivor Kazuya Mishima (一八), a main character in the Tekken fighting game series Kazuya Miyuki (一也), one of the main characters from Diamond no Ace Kazuya Nanase (和弥), a major character from Glass Rose Kazuya Oki (一也), one of the main characters from Kamen Rider Super-1 Kazuya Shibuya (一也), a protagonist in the anime series Ghost Hunt Kazuya Shiranami (カズヤ), the protagonist of Galaxy Angel II: Zettai Ryouiki no Tobira Kazuya Tayama (和哉), supporting character in Hyōka Kazuya Uesugi (和也), central in the anime and manga series Touch Kazuya Yanagiba (和也), also known as Limone, a character in Wedding Peach

See also 7353 Kazuya, a main-belt asteroid