Yuko Hara is a Japanese voice actress and singer born on June 13, 1992, in Saitama Prefecture. She is affiliated with the agency Enkikaku. Her career began after she graduated from the En Theatre Institute in 2011, joining the agency in 2013. Although she originally trained for stage acting, she transitioned to voice acting after successfully auditioning for an anime role.

Hara's first notable voice role came in 2014, when she was cast as Akari Acura in the series Chaika - The Coffin Princess, a part that helped establish her in the industry. That same year, she also voiced Ginko Kurosaki in Mysterious Joker, a role she would reprise in subsequent seasons of the show. Another early lead role was Mizuki Mashiro in Tribe Cool Crew. In 2016, she voiced Ami Gidou, also known as the Blue Princess, in the anime Six Hearts Princess. One of her most prominent recurring roles is Takumi Mukai in The Idolmaster Cinderella Girls franchise, a role she has voiced in the game, the television anime The Idolmaster Cinderella Girls Theater, and various music releases. Her other significant anime roles include Shiira in BEASTARS, JunJun, also known as Sailor Juno, in the Pretty Guardian Sailor Moon Eternal films, and Visco in Marvel Future Avengers Season 2.

Beyond her voice work in anime, Hara has an extensive career in video games, providing the voice for Takumi Mukai in The Idolmaster Cinderella Girls and characters such as Melantha, Beehunter, and Indra in Arknights. She has also performed as a singer for The Idolmaster franchise, contributing to releases like the single The Idolmaster Cinderella Master: Absolute Nine, which charted at number eight on the Oricon Singles Chart, and The Idolmaster Cinderella Girls Starlight Master 05: Junjō Midnight Densetsu, which reached number three.

Hara is also active in stage acting and maintains a variety of personal interests, including baking cakes and ventriloquism. She has cited actress Mitsuko Mori as her inspiration. Her voice type is described as alto to mezzo-soprano. Among fans and colleagues, she is affectionately known as Harabou. In October 2023, Hara announced her marriage to a non-celebrity.