Byun Jun-seo
South Korean Model & Actor
- Title: Byun Jun-seo
- Popularity: 4.428
- Known For: Acting
- Birthday: 1990-10-31
- Place of Birth: South Korea
- Homepage: https://stallionenter.com/m/artists/profile.php?no=10
- Also Known As: Byeon Joon-seo, 변준서, 도유, Do Yoo, Do Yu, Byun Joon-seo, Byeon Jun-seo