한 Siwoo Siwoo (시우) is a South Korean Male Artist. He started in group DayChild. Read All General Information International Stage Name : Siwoo Domestic Stage Name : Pronounce 시우 Full Name : Ham Seungwan Pronounce Full Domestic Name : Pronounce 함승완 Date of Birth : 1998-03-16 (age 28) Zodiac : Pisces Country of Birth : South Korea Related Artists : DayChild - Leader,Vocal,Rapper Original group : DayChild Images