Tomomi Uehara is a pseudonym used by the Japanese voice actor Kaori Mizuhashi. She was born on August 28, 1974, in Sapporo, Hokkaido, Japan. She is affiliated with the talent management agency ARTSVISION.

Mizuhashi made her debut as a voice actor in 1998 with the romantic adventure game First Kiss Monogatari. Her first regular role in an anime series came in 2000 with Hiwou War Chronicles, and she gained wider recognition in 2001 for her starring role as Kasumi Haruno in the NHK educational anime Kasumin.

The name Tomomi Uehara is specifically associated with her work in adult visual novels and their adaptations, a common practice for voice actors in that industry. Most notably, she uses this pseudonym for her role as Akane Suzumiya in the franchise originating from the game Kimi ga Nozomu Eien. This includes the anime adaptation Rumbling Hearts, which aired from 2003 to 2004, and its spin-off original video animation Akane Maniax. Akane is the younger sister of one of the main characters, Haruka Suzumiya.

Beyond this specific pseudonym, her career as Kaori Mizuhashi is extensive and diverse, spanning numerous anime series and video games. She is known for voicing a wide range of characters, from young girls and middle school students to boys. Some of her most well-known roles under her primary name include Ai in the Aria series, Yūno Scrya in the Magical Girl Lyrical Nanoha franchise, Miyako in Hidamari Sketch, Ougi Oshino in the Monogatari series, Mami Tomoe in Puella Magi Madoka Magica, and Elina in the Queen's Blade series. She also plays Kyōka Izumi in Bungo Stray Dogs and Kuki Shinobu in the video game Genshin Impact.

In addition to her work in animation and games, her voice is used for automated station announcements on the Yurikamome transit line in Tokyo, specifically at the Telecom Center station.