Fredrik Hermansson (born 18 July 1976) is a Swedish musician.
He was a keyboardist and backing vocalist in the Swedish progressive rock band Pain of Salvation from 1996 to 2011.
He also works as a free-lance piano player and composer.
Fredrik studied both classical and jazz piano at Birka Folkhögskola in Östersund, Sweden, and chamber music in Västerås, Sweden, where he received a master's degree.
On 8 November 2011, a message to fans by Daniel Gildenlöw noted that Fredrik Hermansson would also be leaving the band at the conclusion of the current tour.