PC: Highup Entertainment

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SIEUN is a South Korean actress and member of the K-pop girl group STAYC.


NameSIEUN | 시은
Full NamePark Sieun | 박시은 | 朴蒔恩
Date of BirthAugust 1, 2001
HometownIchon-dong, Yongsan-gu, Seoul, South Korea
Height159cm | 5′-03″
Blood TypeA
FamilyMother, Father, Younger Sister, Dog
EducationChung-Ang University
Goyang High School of Arts
Sangmyung Middle School
Seoul Shinyongsan Elementary School → Sangmyeong Elementary School
Years Active2014 – present
PositionMain Vocalist
LabelHighup Entertainment


TV Series

2020Mystic Pop-up Baryoung Weolju
2019Everything And NothingAhn Seoyeon
2018Still 17young Woo Seori
2017Queen for Seven Daysyoung Shin Chaekyung
Criminal MindsMo Jieun
Rain or Shineyoung Ha Moonsoo
2016SignalOh Eunji
The Good WifeLee Seoyeon
Beautiful Gong Shimyoung Gong Shim
Rad ScienceJenny
The Gentlemen of Wolgyesu Tailor Shopyoung Oh Youngeun
2015Six Flying Dragonsyoung Yeonhee
2014Pluto Secret SocietyJin Sunmi
Pride and Prejudiceyoung Han Yeolmoo
2020Do You Like Brahms?Jo Sooan
2019The Crowned ClownChoi Gyehwan


  • She started her acting career in 2014.
  • She got into Highup Entertainment as a trainee in 2019.
  • Highup audition songs: FANCY by TWICE, If Only by SEJEONG
  • She is a former Fantagio trainee.
  • Kpop Idol Training Period: 4 years
  • She is a Christian.
  • Sieun graduated from Goyang High School of Arts (Department of Acting).
  • She is majoring in Theatre at Chung-Ang University.
  • Her childhood dream was to become an entertainer.
  • Motto: Love yourself, see far, share with people, and cherish the present.
  • Hobbies: rewatching movies and TV series, writing a diary and lyrics, listening to music
  • Specialties: vocal, piano, flexibility, English
  • If she had not made it as a Kpop idol, she would have worked in the music industry.
  • If she could be a professional athlete, she would choose figure skating.


  • Artist: IU
  • Color: ocean color, purple
  • English Word: grace
  • Film: Titanic (1997), Catch Me If You Can (2002), Inception (2010)
  • Korean Word: maeum (heart)
  • Season of the Year: summer


  • Mother
    Name: Heo Eunjoo
    Born: 1974
  • Father
    Park Namjung (singer)
  • Younger Sister
    Name: Park Siwoo | 박시우
    Born: 2004
  • Pomi
    Breed: Black Poodle

References: Debut Showcase, Highup Girls Introduction Video, Melon TMI Battle, Self-Written Profile, 170618 OSEN

Kpop Idols Born in 2001 | Kpop Idols Born in August