Naoki (直樹) is a masculine Japanese given name and surname. Notable people with the name include:

• Naoki Abe (阿部 直紀, born 1945), Japanese long jumper
• Naoki Bandou, voice actor
• Naoki Harada (原田直樹, born 1991), Japanese footballer
• Naoki Hatada (畑田 真輝, born 1990), Japanese footballer
• Naoki Hattori (born 1966), race car driver
• Naoki Imaya (今矢 直城, born 1980), Japanese footballer
• Naoki Inose (猪瀬 直樹, born 1946), Japanese journalist, historian, social critic and biographer
• Naoki Inoue (井上 直樹, born 1997), Japanese mixed martial artist
• Naoki Izumiya (born 1951), president and CEO of Asahi Breweries
• Naoki Kawamata (born 1985), Japanese rugby union player
• Naoki Kobayashi (小林 直己, born 1984), Japanese dancer and actor
• Naoki Kodaka, Japanese composer
• Naoki Maeda (disambiguation), multiple people
• Naoki Matayoshi (又吉 直樹, born 1980), Japanese novelist and comedian
• Naoki Matoba (的場 直樹, born 1977), Japanese baseball player
• Naoki Matsuda (1977–2011), soccer player
• Naoki Matsudo (born 1973), motorbike racer
• Naoki Mizunuma (水沼 尚輝, born 1996), Japanese swimmer
• Naoki Nakagawa, tennis player
• Naoki Nokubo (野久保 直樹, born 1981), Japanese television personality
• Naoki Sanjugo, novelist
• Naoki Saito (さいとう なおき, born 1982), Japanese illustrator, manga artist, and YouTuber
• Naoki Satō (佐藤 直紀, born 1970), Japanese composer
• Naoki Sato (footballer) (佐藤 尚輝, born 1996), Japanese footballer
• Naoki Segi (born 1963), film director
• Naoki Soma (born 1971), Japanese football defender
• Naoki Takeshi, actor
• Naoki Tanaka (disambiguation), multiple people
• Naoki Tanizaki (born 1978), Japanese wrestler
• Naoki Tatsuta (born 1950), Japanese voice actor
• Naoki Urasawa (born 1960), Japanese manga artist
• Naoki Urata (浦田 尚希, born 1974), Japanese footballer
• Naoki Yamada (born 1990), soccer player
• Naoki Yamamoto (racing driver) (山本尚貴, born 1988), Japanese racing driver
• Naoki Yoshida (吉田 直樹, born 1973), Japanese video game producer, director and designer

• Naoki Domon, a character of Gekisou Sentai Carranger
• Naoki Ishida, a character of Cardfight!! Vanguard
• Naoki Kashima, the name given to the Demi-Fiend protagonist in the radio play version of Shin Megami Tensei: Nocturne

• Naoki Prize, a Japanese literary award presented semiannually