Akashi (written: 明石) is a Japanese surname. Notable people with the surname include:
Kaijin Akashi (明石 海人; 1901–1939), Japanese poet
Akashi Kakuichi (明石 覚一; 1299–1371), Japanese Buddhist monk
Ken Akashi (明石 顕; born 1976), Japanese race walker
Kenji Akashi (明石 健志; born 1986) Japanese baseball player
Masao Akashi (明石 昌夫; 1957–2025), Japanese musical arranger
Momoka Akashi (明石 百夏; born 1981), Japanese musician
Akashi Morishige (明石 全登; 1566–1618?), Japanese samurai
Akashi Motojiro (明石 元二郎; 1864–1919), Japanese general and Governor General of Taiwan
Akashi Shiganosuke (明石 志賀之助; c. 1600–c. 1649), Japanese sumo wrestler
Yasushi Akashi (明石 康; born 1931), Japanese diplomat
Fictional characters:
Akashi Kaoru, character in Psychic Squad
Akashi, character in the film Ra.One
Akashi Seijūrō, character in Kuroko's Basketball
Akashi Yuuna, character in Negima! Magister Negi Magi
Akaashi Keiji, character in Haikyu!!
Akashi Takeomi, character in Tokyo Revengers