Marrow Deep is the ninth studio album by Mastodon and their first since 2021's Hushed and Grim, released on 28 August 2026 via Loma Vista Recordings. It is also the band's first album after the departure and death of co-founder and guitarist Brent Hinds, a loss that resonates through the songs. Guitarist Nick Johnston and keyboardist João Nogueira join the recording line-up for the first time. Patrik Berger and Kurt Ballou produced the album, with guest contributions from Josh Homme on lead single Snakes for Dinner, Geezer Butler and Randy Blythe.

This edition is a CD.