Reed Douglas Mullin (born February 12, 1966) is the American drummer for metal band Corrosion of Conformity (COC). He was the founding member with Mike Dean and Woody Weatherman. Mullin, along with Weatherman, also played in the Raleigh NC hardcore band, No Labels. No Labels disbanded in 1984, while Corrosion of Conformity continued to evolve and gain popularity. He left COC on February 1, 2001 due to back injury.
Following his departure from Corrosion of Conformity, Mullin worked on several other projects, including a hardcore band called Man Will Destroy Himself, and frontman for the power pop band Brown.
In 2010 he rejoined COC with the Animosity era lineup (sans Pepper Keenan). As of October 2011, Mullin continues to record and tour with COC.