Joseph Ward Simmons (born November 14, 1964), known by the stage name Run, Rev. Run or DJ Run, is one of the founding members of the influential hip hop group Run–D.M.C., and a practicing minister, known as Reverend Run. Simmons was born in Hollis, Queens, New York. He is the younger brother of Daniel "Danny" Simmons, Jr. and Russell Simmons, the co-founder of Def Jam Records.

He found new popularity in 2005 with his family MTV reality show Run's House.