Darius Campbell (born Darius Campbell-Danesh, 19 August 1980), also known professionally either as Darius Danesh or Darius, is a Scottish platinum-selling singer-songwriter, a West End stage actor, an operatic baritone, an author, and an Ambassador for The Prince's Trust.

He performed the role of Billy Flynn in the West End production of Chicago, the youngest ever to play that part, in two runs of the musical. He played both the lead role of Sky Masterson in the Olivier Award winning Guys and Dolls, and the originating role of Rhett Butler in Sir Trevor Nunn's theatrical adaptation of Gone with the Wind.