Jang Woo-young (Korean: 장우영; Hanja: 張祐榮; born on April 30, 1989), better known mononymously as Wooyoung, is a South Korean singer, songwriter, dancer and actor. In 2008, he debuted as a member of 2PM, a boy band currently managed by JYP Entertainment. He is mainly known for his work in 2PM and his role as Jason in the South Korean drama Dream High.

Aside from his work in 2PM, he has hosted SBS' music show Inkigayo from July 2009 to July 2010 as well as the KBS talk show Win Win from February to August 2010. He debuted as a solo artist with his first extended play, 23, Male, Single, in July 2012. He has also composed several songs for 2PM, his solo music, and other artists.