Krzysztof Raczkowski (October 29, 1970 – August 20, 2005), also known as
Docent or
Doc, was a
Polish drummer, best known as a member of Polish
death metal bands
Vader (1988–2005) and
Dies Irae. He also appeared as a guest or temporary musician in
Sweet Noise,
Hunter, Slashing Death, Unborn, Moon, and Overdub Trio.