Rez is the stage name of Kevin Clark, a dubstep artist from St. Louis. The name is also used by several other acts, including an Iranian rapper associated with Divar Records, a French chiptune musician active in the demoscene since the mid-1990s, and a DJ who has been a resident at Bar Ultra in Ibiza.

As a name in music, Rez is associated with hip hop, rap, Persian rap, chiptune and bitpop. The Iranian rapper under this name releases a first studio album in 2012. The French Rez performs under that nickname from the mid-1990s and works within the demoscene. A separate DJ Rez has recorded one of his sets from Bar Ultra.

The name also refers to the 2002 Sega rail shooter Rez, known for its music-focused gameplay and soundtrack contributions from Japanese trance artists and the ambient glitch group Oval, as well as to the Christian rock group Resurrection Band.