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 actorChiyohakuhō Daiki (千代白鵬 大樹) (born 1983), Japanese sumo wrestlerDaiki Enokida (榎田 大樹) (born 1986), Japanese baseball playerDaiki Hata (畑 大樹) (born 1982), Japanese mixed martial artistDaiki Ito (伊東 大貴) (born 1985), Japanese ski jumperDaiki Iwamasa (岩政 大樹) (born 1982), Japanese footballerDaiki Kameda (亀田 大毅) (born 1989), Japanese boxerDaiki Kamikawa (上川 大樹) (born 1989), Japanese judokaDaiki Kasho (嘉生 大樹) (born 1976), Japanese video game composerDaiki Nakamura (中村 大樹) (born 1962), Japanese voice actorDaiki Nakamura (中村 大輝) (born 1992), Japanese sumo wrestlerDaiki Nishiyama (西山 大希) (born 1990), Japanese judokaDaiki Niwa (footballer) (丹羽 大輝) (born 1986), Japanese footballerDaiki Oizumi (尾泉 大樹) (born 1989), Japanese footballerDaiki Sato (佐藤 大基) (1988–2010), Japanese footballerDaiki Suzuki, Japanese-born American fashion designerDaiki Takamatsu (高松 大樹) (born 1981), Japanese footballerDaiki Tamori (田森 大己) (born 1983), Japanese footballerToyonoshima Daiki (豊ノ島 大樹) (born 1983), Japanese sumo wrestlerDaiki Umei (梅井 大輝) (born 1989), Japanese footballerDaiki Wakamatsu (若松 大樹) (born 1976), Japanese footballerDaiki Watari (渡 大生) (born 1993), Japanese footballerDaiki Yamashita (山下 大輝) (born 1990), Japanese voice actor