Yū Kamonomiya is a Japanese voice actress born on April 25 in Aomori Prefecture, Japan. She stands 160 centimeters tall and speaks with a Tsugaru dialect. Her professional training was completed at the Video Techno Academia.

Kamonomiya is best known for her voice roles in the anime series Little Busters! She provided the voice for Kyōsuke Natsume during his grade school years, as well as the characters Miyuki Koshiki and a grade school-aged Kengo Miyazawa. Her other anime work includes a role as Sister Laura in Dance in the Vampire Bund and as a female soldier and princess in Shinobi Maru.

Beyond anime, her career encompasses a wide range of voice work including dubbing and voice-over for international productions. Her dubbing credits for WOWOW include playing Carol in Criminal Minds season 7 and Rose in Criminal Minds season 3. She has also voiced characters for Disney Channel's Hannah Montana and the DVD release of Southland Tales. Her voice-over work for WOWOW, NHK BS1, the History Channel, and Discovery Channel includes projects such as Project Runway and programs exploring modern marvels and historical figures.

In the video game field, Kamonomiya has performed roles across different platforms. She voiced Garnet in the mobile game Elvarie: Guardian of the Magic Stone, Clarissa Meyer in the PlayStation 2 game Naraoku no Shiro: Ichiyanagi Kazu, 2 Dome no Junan, and Ide Digurea in the PC game Shinkyoku Sōkai Polyphonica The Black. She has also worked in stage productions, narration for commercials and corporate videos, live event MC work, and has performed readings of picture books for the television channel Kids Station.