Doh Kyung-soo (Korean: 도경수; born January 12, 1993), better known by his stage name D.O. (Korean: 디오), is a South Korean singer and actor. He is a member of the South Korean boy band Exo.
D.O. (디오) / Do Kyungsoo (도경수) is a South Korean actor and a member of the South Korean boy group EXO as D.O. under SM Entertainment. He is under the agency 컴퍼니수수 (Company Soosoo) for his personal activities.