Reina Kondo is a Japanese voice actress and singer from Chiba Prefecture, born on January 28, 1999. She is affiliated with the talent agency Hirata Office and the record label Nippon Columbia. Before beginning her voice acting career, Kondo worked as an exclusive model for the fashion magazine Love Berry during her elementary school years. Her early interest in anime, particularly series such as Pretty Cure and Sailor Moon, inspired her to pursue a career in voice acting.

Kondo made her debut as a voice actress in 2015, taking on minor roles in anime television series. Her first major leading role came in 2018 when she was cast as the shy protagonist Hana Ichinose in the slice-of-life anime Slow Start. That same year, she voiced Suzuka Nagami in My Sister, My Writer and began her long-running role as Ronie Arabel in the Sword Art Online: Alicization series, a character she would reprise in subsequent installments including War of Underworld.

Throughout her career, Kondo has demonstrated versatility across a wide range of genres. In 2020, she portrayed the resilient restaurant owner Nikaido in the dark fantasy series Dorohedoro. The following year, she took on multiple roles including Sakura Kono in Horimiya, Chal Walde in Battle Athletes Victory ReSTART!, and Lilyna in The Slime Diaries. Her 2022 credits included Paū Nekoyanagi in Sabikui Bisco, Enoki Yukigaya in Tribe Nine, and her first lead protagonist role as Nagomi Wahei in the original television anime Akiba Maid War. She also voiced Eta in The Eminence in Shadow that year, later reprising the role for its second season.

Kondo's work extends into ongoing franchise roles. She voices Hiori Kazano in The IDOLM@STER Shiny Colors multimedia project, Aru Rikuhachima in the Blue Archive game and its anime adaptation, and has appeared in numerous other series including Those Snow White Notes, World Dai Star, and the various entries in the Yuki Yuna is a Hero franchise. Her filmography also includes roles in World Trigger, Dropout Idol Fruit Tart, and the Kaiju Girls series.

In addition to her voice acting career, Kondo launched her solo singing career in 2021 under Nippon Columbia. Her debut single, Sakura Maichiru Yoru ni, served as the ending theme for Battle Athletes Victory ReSTART!. She has also performed as part of the unit STARTails☆ with her Slow Start co-stars, performing the series opening and ending themes.

Kondo maintains several personal hobbies and skills, including classical Japanese dance, the ability to speak in Kansai dialect, and playing badminton. Her nickname, Reirei, was chosen by viewers of a web program in which she appeared. In February 2024, it was announced that she would be taking a hiatus from voice acting activities due to health concerns. She has since resumed work, taking on limited roles including in the Japanese dub of Dragon Raja II.