Yuki Kajiura (梶浦 由記, Kajiura Yuki^?, born August 6, 1965 in Tokyo, Japan) is a Japanese composer and music producer. She has provided the music for several popular anime series, such as one of the Kimagure Orange Road movies, Noir, .hack//Sign, Aquarian Age, Madlax, My-HiME, My-Otome, .hack//Roots, Pandora Hearts, Puella Magi Madoka Magica, Tsubasa Chronicle and the Kara no Kyoukai movies (amongst others). She also assisted Toshihiko Sahashi with Mobile Suit Gundam SEED and Mobile Suit Gundam SEED Destiny. Kajiura has also composed for video games, including the cutscene music for Xenosaga II and the entire Xenosaga III game soundtrack.

Due to her father's work, Kajiura lived in West Germany from 1972 until her middle school years. Her first music piece, which she had written at the age of 7, was a farewell song for her grandmother. After graduating from college (back in Tokyo), she began working as a systems engineering programmer, but in 1992, she turned her career around to focus on her activities on music. She admits that it was her father who greatly influenced this decision, for he was a great opera and classical music admirer.