David Randall "Randy" Blythe (born February 21, 1971) is the vocalist and lyricist of American groove metal band Lamb of God and side-project band Halo of Locusts. He also performed guest vocals for Cannabis Corpse, Overkill and Gojira. He is known as D. Randall Blythe on Lamb of God's albums. As a teenager, he looked up to the Sex Pistols, Cryptic Steel, and Bad Brains.

In June 2012, Blythe was arrested in the Czech Republic and was indicted on manslaughter charges related to the 2010 death of Daniel Nosek, a 19-year-old fan, after a Lamb of God concert. The Czech court found that Blythe had pushed the fan off the stage and was "morally responsible" for the killing, but held that liability for Nosek's death also lay with promoters and security members, and ultimately acquitted Blythe of the criminal charges specifically.