Nanami Atsugi is a Japanese voice actress and singer born on October 11, 1997, in Nagano Prefecture. She is affiliated with both 81 Produce and Avex Pictures. Her path to the profession began in childhood, inspired by anime characters and a desire to become a singing and dancing voice actor after seeing the group i☆Ris perform. She trained in classical ballet for over a decade from the age of three, a skill that would later become a significant part of her career.

Her career began in 2017 when she was one of three winners selected from over 2,000 applicants at the avex×81produce Wake Up, Girls! AUDITION. This success led to the formation of the voice actor unit Run Girls, Run! with fellow winners Coco Hayashi and Yuuka Morishima, and marked her voice acting debut in the anime Wake Up, Girls! New Chapter, where she played Itsuka Atsugi. The unit performed theme songs for several anime series and was active until its dissolution in March 2023.

Atsugi is widely recognized for her starring role as Rinka Aoba in the long-running television anime series Kiratto Pri☆Chan, a part she began in 2018. She also reprised this role for the film PriPara & Kiratto Pri☆Chan: Kira Kira Memorial Live. Her other notable anime voice roles include Martha in Death March to the Parallel World Rhapsody, Runo in Puraore! Pride of Orange, and various characters in series such as Cardfight!! Vanguard and The Assassins Pride. Her work also extends to video games, where she has voiced characters including Tomoe Sajou in Blue Archive,君島奈奈 in 22/7: Ongaku no Jikan, and roles in Monster Strike.

Beyond voice acting, Atsugi is known for her versatility as a performer and creator. As a member of Run Girls, Run!, she sang numerous anime theme songs and contributed as a choreographer for several of the group's songs, utilizing her extensive dance background. She has also choreographed for other artists. Her work includes stage plays, radio hosting, and maintaining a YouTube channel. A notable long-standing friendship with fellow voice actress Mayu Mineda, a junior high school classmate, has led to them working together on various radio and internet programs.