Atori Shigematsu is a Japanese actress, voice actress, and narrator. She was born on June 28, 1968, in Tokyo, Japan. She is affiliated with the voice acting agency Voice Pro Arcenciel. Throughout her career, she has also been associated with other agencies, including 81 Produce and Production Tokyo Drama House.

Shigematsu's career began in the 1980s. Her filmography includes a variety of roles in television anime, original video animations, and video games. In television animation, her credits include minor roles in series such as Kindaichi Case Files and Gash Bell.

However, Shigematsu is most recognized for her long-standing and singular association with the Digimon franchise. Since 1999, she has provided the voice for the Digimon character Piyomon and its subsequent evolutionary forms, including Birdramon, Garudamon, and Hououmon. This role began with the original Digimon Adventure television series and continued with its direct sequel, Digimon Adventure 02.

Shigematsu has reprised the role of Piyomon for over two decades across numerous续作 and films. Her voice work in the franchise includes the theatrical film Digimon Adventure: Last Evolution Kizuna and the series of films Digimon Adventure tri., including its sixth chapter, Digimon Adventure tri.: Future. She also returned for the 2020 reboot television series, Digimon Adventure:. Beyond animation, she has voiced the character in various Digimon video games and participated in character song CDs and other music releases related to the series.

Beyond her voice work, Shigematsu has worked as a narrator and has experience as a stage actress. She has also served as a part-time lecturer at the Tokyo Animation College, instructing in the voice acting department.