"Ghost of Perdition" is a song by the progressive metal band Opeth, featured on their 2005 album, Ghost Reveries. The track showcases the band's signature blend of heavy and melodic elements, combining intricate guitar work with dynamic shifts in tempo and mood. Lyrically, it explores themes of loss, despair, and the struggle between light and darkness. The song is notable for its lengthy structure, spanning over 10 minutes, and includes both clean and growled vocals by lead singer Mikael Åkerfeldt. "Ghost of Perdition" is often praised for its atmospheric soundscapes and emotional depth, making it a standout piece in Opeth's discography.