Naomi Shindoh is a Japanese voice actress born on November 9, 1972, in Kyoto Prefecture. She is affiliated with the talent agency Aoni Production and is known among fans by the nickname Cindy. A native of the Kyoto region, she is a speaker of the local Kyoto dialect.

Shindoh began her voice acting career in 1999 after graduating from the 15th term of Aoni Production's training school, the Aoni Juku Osaka School. Her early work included minor roles in various anime series, which helped her gain experience in the industry. She achieved her breakthrough in the early 2000s with prominent roles in several major franchises. She is perhaps best known for voicing Cagalli Yula Athha in the immensely popular mecha anime Mobile Suit Gundam SEED and its sequel Mobile Suit Gundam SEED Destiny. Another significant early role was as Shizuru Fujino in the supernatural action series My-HiME and its follow-up, My-Otome. These performances established her as a go-to talent for portraying strong-willed and determined female characters.

Throughout her career, which spans over two decades, Shindoh has built an extensive filmography across television anime, original video animations, and films. Her television credits include roles such as Hokuto Kusanagi in Gear Fighter Dendoh, Kuroudo Marume in Gekito! Crush Gear Turbo, Noike Kamiki Jurai in the Tenchi Muyo! Ryo Ohki series, Kalifa in One Piece, and Ayaka Shindō in Beyond the Boundary. In the 2010s and 2020s, she continued to take on diverse roles, appearing as Elizalina in A Certain Magical Index III, Rol in Suppose a Kid From the Last Dungeon Boonies Moved to a Starter Town, Ayaha Tsuge in Shinobi no Ittoki, and Mineko Inuyama in Laid-Back Camp. She has also lent her voice to characters in long-running franchises like Dragon Ball Super, where she played Dercori.

Beyond anime series, Shindoh has an extensive body of work in video games and dubbing foreign productions. In the gaming world, she is recognized for her roles as Mori Ranmaru and Tachibana Ginchiyo in the Samurai Warriors series, Juli Mizrahi in the Xenosaga series, and the female player character in God Eater 3. Her dubbing work includes providing the Japanese voice for Olivia Colman's character Sonya Falsworth in the Marvel series Secret Invasion and Emmanuelle Chriqui's Lana Lang-Cushing in Superman & Lois. She has also been active in radio programs and drama CDs related to various anime franchises.

A notable event in her later career occurred in 2023 when it was announced that she would be replaced by Nanako Mori as the voice of Cagalli Yula Athha for the film Mobile Suit Gundam SEED Freedom, released in 2024. This marked the end of her long-standing association with a signature role that had spanned over two decades.