Marrow of the Spirit is the fourth studio album by American metal band Agalloch, released on November 23, 2010.

Marrow of the Spirit marked a change in record labels for Agalloch.

It was the first album to feature Aesop Dekker (of Ludicra) on drums, replacing Chris Greene.

Recording took place at Audible Alchemy Studios in Portland, Oregon with Steven Wray Lobdell producing.

[2] On October 29, 2010, the track "The Watcher's Monolith" was released on the music website Stereogum, accompanied by an interview with John Haughm.