Grave Lines are an English doom and sludge metal group from London and Brighton, active since 2015. The band is associated with doom metal, sludge metal, heavy metal and post-metal, and is linked with the label New Heavy Sounds.

The group is centred on Staggerin' Matt. Their sound sits within the sludge/doom tradition, drawing on the heavier end of metal while also overlapping with post-metal and heavy metal.