Daiki (written: 大毅, 大樹, 大貴, 大生, 大己, 大基, 大輝 or 大希) is a masculine Japanese given name. Notable people with the name include:
Daiki Arioka (有岡 大貴) (born 1991), Japanese actor
Chiyohakuhō Daiki (千代白鵬 大樹) (born 1983), Japanese sumo wrestler
Daiki Enokida (榎田 大樹) (born 1986), Japanese baseball player
Daiki Hata (畑 大樹) (born 1982), Japanese mixed martial artist
Daiki Ito (伊東 大貴) (born 1985), Japanese ski jumper
Daiki Iwamasa (岩政 大樹) (born 1982), Japanese footballer
Daiki Kameda (亀田 大毅) (born 1989), Japanese boxer
Daiki Kamikawa (上川 大樹) (born 1989), Japanese judoka
Daiki Kasho (嘉生 大樹) (born 1976), Japanese video game composer
Daiki Nakamura (中村 大樹) (born 1962), Japanese voice actor
Daiki Nakamura (中村 大輝) (born 1992), Japanese sumo wrestler
Daiki Nishiyama (西山 大希) (born 1990), Japanese judoka
Daiki Niwa (footballer) (丹羽 大輝) (born 1986), Japanese footballer
Daiki Oizumi (尾泉 大樹) (born 1989), Japanese footballer
Daiki Sato (佐藤 大基) (1988–2010), Japanese footballer
Daiki Suzuki, Japanese-born American fashion designer
Daiki Takamatsu (高松 大樹) (born 1981), Japanese footballer
Daiki Tamori (田森 大己) (born 1983), Japanese footballer
Toyonoshima Daiki (豊ノ島 大樹) (born 1983), Japanese sumo wrestler
Daiki Umei (梅井 大輝) (born 1989), Japanese footballer
Daiki Wakamatsu (若松 大樹) (born 1976), Japanese footballer
Daiki Watari (渡 大生) (born 1993), Japanese footballer
Daiki Yamashita (山下 大輝) (born 1990), Japanese voice actor
