Paul O'Neill was an American composer, lyricist, record producer, and guitarist. He was the producer of the progressive metal band Savatage, and the founder of Trans-Siberian Orchestra.

Savatage is an American heavy metal band founded by brothers Jon and Criss Oliva in 1979 in Tarpon Springs, Florida. The band was first called Avatar, but, shortly before the release of their debut album Sirens (1983), they changed their name to Savatage, as Avatar was already taken by at least one other band. Savatage is considered to be an integral part of the American heavy metal movement of the early-to-mid-1980s and has been cited as a key influence on numerous heavy metal subgenres.