Jeff Loomis (born 14 September 1971 at Appleton, Wisconsin) ison of the guitar players for Arch Enemy.
When he was 16 years old, he won a guitar competition in Wisconsin, and was auditioned to replace Jeff Young in Megadeth. He was not choosen due to his young age.
Jeff joined Sanctuary during the tour of the album The Mirror Black. Just after the tour, the band dismantled and he created Nevermore with ex-members Jim Sheppard and Warrel Dane.
In 2008, he released a solo album entitled Zero Order Phase.