Photo: Marie Claire Korea / CC BY 3.0 (source: Wikimedia Commons)
Ong Seongwu is a singer and actor. Ong Seongwu was born on August 25, 1995 in Incheon, South Korea. That works out to 31 years old in 2026.
My Take
Ong Seong-wu is one of those rare survival-show graduates who actually made you forget the show that launched him — which is saying something, because Produce 101 Season 2 was a phenomenon. He placed fifth out of about a hundred trainees, became part of Wanna One, and by the time that group disbanded in 2019 he'd already figured out exactly who he wanted to be next. His pivot to acting in At Eighteen was genuinely impressive: not the usual idol-trying-drama awkwardness, but something warm and considered. He went to Hanlim Multi Art School, the same training ground as half of K-pop royalty, and that pedigree shows — there's a craft behind the charisma. Keeping his personal life tightly private while staying active on Instagram is a move I respect. Quietly building, consistently surprising.
This take was written by generative AI, one per person, from publicly reported facts (editorial policy). It is a reading of the record, not reporting.
1. Profile
- Name (English)
- Ong Seongwu
- Name (Japanese)
- オン・ソンウ
- Reading
- おん・そんう
- Born
- August 25, 1995 (age 31)
- Zodiac / Chinese zodiac
- Virgo / Boar
- Origin
- Incheon, South Korea
- Occupation
- singer / actor
2. Links
3. About this entry
Tags
- Last updated
- 2026-06-02
Facts are limited to publicly available information up to 2024; non-public or unconfirmed items are omitted. English text is machine-assisted (facts translated by Sonnet, "My Take" written by Opus 4.8). The Japanese page is the source of record.
Frequently asked questions
When was Ong Seongwu born?
Born August 25, 1995 (age 31).
Where is Ong Seongwu from?
Ong Seongwu is from Incheon, South Korea.
What does Ong Seongwu do?
Ong Seongwu works as singer, actor.
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