Naho Yokomizo is a Japanese actress and voice actress born on March 27, 2008, in Kanagawa Prefecture, Japan. She is affiliated with the talent agency THEATRE ACADEMY. Her career in the entertainment industry began in 2014 when she appeared in the live-action film adaptation of Kiki's Delivery Service, playing a young Kiki. Following this debut, she built a substantial career as a child actress, with numerous roles in television dramas. A significant early role was in the 2018 television series Stepmom and Daughter's Blues, where she played the young Miyuki Miyamoto, a part she reprised in several subsequent specials.

Yokomizo expanded into voice acting in 2018 with her role as the eight-year-old Michelle in the anime film Mobile Suit Gundam NT. She has since provided Japanese voice-dubbing roles for characters in foreign films, including Cindy-Lou in The Grinch and Connie in Soul. A major milestone in her voice acting career came in 2022 when she landed the role of Fūka, also known as Fuka Hasegawa, in the anime film Lonely Castle in the Mirror. This role is often cited as her transition into more prominent animation work. Beyond these credits, she has also voiced a character in the anime film Birthday Wonderland. Throughout her career, she has maintained a consistent presence in live-action television, with credits in numerous dramas, including a recurring role in the series You and the World's End.