is a Japanese voice actress and singer affiliated with 81 Produce. Some of her noteworthy roles include Yoshino Nanase in Wake Up, Girls!, Guri in Love Tyrant, Makoto in Shachibato! President, It's Time for Battle!, and Hitori Gotà  in Bocchi the Rock!.
Aoyama was born in Kumamoto Prefecture on May 15, 1996. In middle school, Aoyama was a member of her school's chorus club, where she spent most of her time. She was also a fan of various manga series, especially Samurai Deeper Kyo. As a result, she decided to pursue a career in voice acting. After attending some open auditions only to not be cast, she was eventually cast as Yoshino Nanase in Wake Up, Girls! via an open audition. In 2015, Aoyama, along with the Wake Up, Girls! voice actor unit, won the special award at the 9th Seiyu Awards.
In March 2020, Aoyama went on hiatus due for medical reasons. She returned to work the next month.
On March 9, 2022, she made her solo singer debut with her first single, "Page". Later that year, she was cast as Hitori Gotà  in the anime television series Bocchi the Rock! During the course of the anime's release, Aoyama started learning guitar as part of a project called "Road to Guitar Hero", inspired by her character in the series, eventually learning how to play the anime's opening theme, "Seishun Complex". And subsequently, showcasing the ending theme, "Korogaru Iwa, Kimi ni Asa ga Furu" at the Kessoku Band Live: Kà Âsei.
She released her first album La Valigia on March 8, 2023. Later that year, she was cast in the role of Dot, also known as Gurumin, in '. In 2024 she voiced the role of Nonoa Miyamae in Alya Sometimes Hides Her Feelings in Russian.
Aoyama is affectionally known as Yoppi.