Oh Se-hun (오세훈; born April 12, 1994), known professionally as Sehun (세훈), is a South Korean singer-songwriter, dancer and actor under SM Entertainment. He is the maknae of the South Korean boy group EXO, its sub-group EXO-K and its sub-unit EXO-SC.

Apart from his group's activities, Sehun has also had supporting roles in various television dramas and films such as Secret Queen Makers (2018) and Now, We Are Breaking Up (2021), and starred in Dokgo Rewind (2018).