Kevin Moore (born May 26, 1967) is a keyboardist, composer and founder of the Chroma Key music project. He is also a former member of the American progressive metal band Dream Theater, co-founder of the progressive rock supergroup O.S.I. and creator of Turkish film soundtracks. Throughout his career, he has become known for his emotional music and lyrics, nomadic tendencies, and unique use of spoken-word samples.

Moore, who was born on Long Island, New York, began his music career in Kings Park, Long Island, learning piano at the age of six and writing his first song at the age of 12. After graduating from high school in 1985, Moore briefly attended SUNY Fredonia, where he studied classical music, before returning home to form the band Majesty with childhood friends guitarist John Petrucci and bassist John Myung, who had recruited drummer Mike Portnoy (a fellow Long Islander) during their short enrollment at Berklee College of Music. Singer Chris Collins handled vocal duties for Majesty, but he was subsequently replaced by Charlie Dominici (and eventually James LaBrie) and the band was renamed Dream Theater.

Dream Theater's debut studio album was 1989's When Dream and Day Unite, which earned the group comparisons to well-known progressive rock bands such as Rush and Queensrÿche. Their big breakthrough, however, came in 1992 with the album Images and Words, featuring the band's highest charting single to date, "Pull Me Under". The song, which included lyrics by Moore, reached #10 on the Billboard Mainstream Rock Tracks chart. Following their relentless touring in support of the second album, the band also went on to release a live album, Live at the Marquee, and a video, Images and Words: Live In Tokyo. The video's extensive documentary footage would subsequently introduce many fans to Moore's sarcastic sense of humor.