List of Famous people with last name Yamaguchi

Rie Yamaguchi is a former Japanese voice actress affiliated with 81 Produce. On March 1, 2017, she announced her retirement from voice acting.

Atsushi Yamaguchi is a Japanese lawyer and academic who has served as an associate justice of the Supreme Court of Japan since 2017.

Shogo Yamaguchi in Aichi Prefecture is a Japanese actor. He debuted as an actor in V-cinema in 2001, and made his theatrical film debut in 2003 in Azumi. His first main lead starring role was in the tokusatsu television series Madan Senki Ryukendo in 2006, which was a major breakthrough and made him rise to worldwide fame, and is also considered to be his best and most memorable performance to date. In 2008, he was selected from an audition of 500 actors to play the male lead against the heroine in the NHK Asadora Dandan. His other notable roles are in the movie Parazoku: Parapara ja Naika (2006) and the television series Hanchō.

Koki Yamaguchi is a professional Japanese baseball player. Selected in the fourth round of the 2018 NPB Draft from Meioh High School in Akita Prefecture, he plays outfield and first base for the Chiba Lotte Marines.