Azusa Tanaka is a Japanese voice actress known for her work in anime dubbing and original Japanese animation. She is currently affiliated with the talent agency Mausu Promotion, having joined in October 2021 after previously being associated with Theater Echo. Her background includes training at Tokyo Announce Gakuin College and membership in the 35th generation of the Yen Theater Research Institute, a relationship she has maintained since 2012.

In the realm of international productions dubbed into Japanese, Tanaka is recognized for her role in the Netflix animated series Castlevania. She provides the Japanese voice for Lisa Tepes, the wife of Dracula and mother of Alucard, a character originally performed in English by Emily Swallow. Additionally, she voiced the character of the Large Woman in the same series.

Tanaka has built a steady career in Japanese television animation, appearing in several long-running and notable series. Her early roles included various supporting characters such as a woman, a female announcer, a mother, and an operator in multiple episodes of Yu-Gi-Oh! ARC-V between 2014 and 2016. She also had a role as an aunt in the Go!Princess PreCure series in 2015. In the 2020s, her credits expanded to include the role of a resident in Kingdom (season 3), a staff member in The Aquatope on White Sand, and the character Koinari Koda in Golden Kamuy (season 4). In 2023, she voiced the mother of a character named Donnie in The Seven Deadly Sins: Four Knights of the Apocalypse. Her work in original net animation includes roles in the series Onmyōji and YAKITORI: Soldiers of Misfortune.

Her film work includes a voice role as a woman in the theatrical film Fruits Basket -prelude- released in 2022. Regarding recurring professional collaborations, data indicates she has worked most frequently with voice actor Kosuke Echigoya, with whom she has shared three credits across various projects.