Janick Robert Gers (born January 27, 1957 in Hartlepool, England) is one of three guitarists in the heavy metal band Iron Maiden.

Gers was the lead guitarist of the band White Spirit before joining Gillan, a group formed by former Deep Purple vocalist Ian Gillan. After Gillan disbanded, he played in the group Gogmagog and with various artists including Fish of Marillion. In 1990, he played guitar on the first solo album of Iron Maiden vocalist Bruce Dickinson, "Tattooed Millionaire". During the recording of the album he was asked to join Iron Maiden in place of departing Adrian Smith. He has remained with the band ever since.

His solos are fast and furious, but Gers is a skilled composer. His main influence is Ritchie Blackmore of Deep Purple, from whom he has emulated certain on-stage poses and soloing attacks.