Anju Nitta is a Japanese voice actor affiliated with the agency 81 Produce. He was born on August 16, 1992, in Miyagi Prefecture and is a graduate of the Tokyo Voice Actor Academy. His path to a career in voice acting began upon graduating from this vocational school, and his first named role in a game came soon after.

Nitta's most prominent and defining role to date is as Shinobu Sengoku in the popular franchise Ensemble Stars!. He began voicing the character in the 2015 game and has continued the role across subsequent anime adaptations, music CDs, and live event appearances. Shinobu Sengoku is a member of the unit Ryuseitai, and Nitta has performed character songs for the group, contributing to the franchise's extensive music catalog. This role is significant as it was his first major, named character following his voice acting debut.

Beyond this signature role, Nitta's career consists primarily of supporting and guest characters in a wide range of anime and video game productions. His television anime credits include appearances in series such as Cardfight!! Vanguard G, Little Witch Academia as Michael, Major 2nd, The Gymnastics Samurai, and The Duke of Death and His Maid. He has also provided voices for foreign language dubs, such as the Korean drama Looks Like You've Fallen for Me. In video games, his roles include Shou in White Cat Project and, more recently, Wanqing in the 2024 game Arknights.

A recurring theme in Nitta's career is his consistent and long-term involvement with the Ensemble Stars! franchise, which includes voice work for games, anime, and participation in associated radio shows and live concerts. His work is characterized by a focus on supporting roles across a variety of series, building a steady portfolio since his debut in the mid-2010s. Information about his personal life is not a matter of public record, and his professional achievements are centered on his dedication to his craft and his identifiable role within a major multimedia project.