Ong Seong Woo
Ong Seong Woo

First Name: Seong Woo
Family Name: Ong
Native name: 옹성우
Also Known as: Ong Seong Woo;Ong Seong Wu;Ong Sung Woo
Nationality: South Korean
Gender: Male
Born: August 25, 1995

Ong Seong Woo is a South Korean idol. From 2017-2018, he was part of the Producer 101 Season 2 winning idol group, Wanna One. Ong concluded his contract with Wanna One on December 31, 2018, although he would still appear with the group until its official farewell concerts on January 24–27, 2019. In 2019, Ong was casted as the male lead in the JTBC youth drama The Moment of 18, alongside Kim Hyang-gi and Shin Seung-ho.