Sieun (STAYC)

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Sieun (STAYC) - Biography, Profile, Facts, and Career

Even though Sieun initially debuted as an actress in previous 2014, she actually already has a desire to be a singer since she was just a child.

Starting to be a trainee in FE Entertainment, Sieun first made her first debut as an actress in February 2014 by acting in Pluto Secret Society.

During that period, she then continued to appear again in some dramas, such as Pride and Prejudice (2014), Six Flying Dragons (2015), Signal (2016), and The Good Wife (2016).

But after that, Sieun decided to move to JYP Entertainment as a trainee in 2017. In that agency, she made some acting appearances again for some dramas like Still 17 (2018).

Two years later, she finds out that she wants to reach her dream to be a singer. Moving to High Up Entertainment, she then became a trainee there.

In September 2020, Sieun finally became an official member of STAYC. She then debuted with the group by releasing Star To A Young Culture on November 12, 2020.


  • Real Name: Park Si Eun (박시은)
  • Stage Name: Sieun (시은)
  • Nickname: Ssini, SingSingi
  • Birthday: August 1, 2001
  • Birthplace: Seoul, South Korea
  • Zodiac Sign: Leo
  • Nationality: South Korean
  • Position: Main Vocalist
  • Height: 159 cm (5’3″)
  • Weight: 44 kg (97 lbs)
  • Blood Type: A
  • Religion: –
  • Profession: Singer, Dancer
  • Education: Chung-Ang University
  • Hobbies: Watching dramas and movies, Writing a diary, Writing lyrics
  • Parents: Park Namjung (father), Heo Eun Joo (mother)
  • Siblings: Siwoo
  • Boyfriend: –
  • Facebook: –
  • Twitter: –
  • Instagram: –
  • TikTok: –
  • YouTube: –


  • Rock is her representative object.
  • Snake is her Chinese zodiac sign.
  • She is actually Park Namjung’s daughter.
  • IU is her biggest role model.
  • Her faces had appeared in TV shows, such as Law of the Jungle K, Happy Together, Kids Are Life’s Blessing, and so on.
  • She became a trainee for High Up Entertainment in 2019.
  • Before joined High Up, she became a JYP trainee in 2017.
  • Sieun is able to play the piano.
  • ENFJ is her MBTI type.
  • She made a good friendship with YOURS’ Hwang Jia.
  • Before attending college, she had attended Goyang High School of Arts Nationality.
  • She idolizes Apink and G-Dragon.
  • Sieun once appeared in King of Masked Singer.
  • She actually debuted as an actress in 2014 under FE Entertainment.
  • She has a sister who is younger than her.
  • Sieun had become an actress for a lot of dramas, like Pride and Prejudice (2014), Signal (2016), Queen for Seven Days (2017), Still 17 (2018), The Crowned Clown (2019), and Do You Like Brahms? (2020).
  • She became a trainee for approximately four years.
  • She once made an appearance for a movie called Today’s Love.
  • Soft maltese is Sieun’s official animal.
  • Her motto is to love ourselves and cherish the present moment.
  • She is able to speak English and Korean.
  • Her visual is similar to a puppy.
  • Her skin is really soft like a mochi.
  • Sieun is a bit perfectionist.
  • She once made a guest appearance for How Do You Play? in 2019.
  • Lee Min Ho is Sieun’s ideal type.

See Full STAYC Members

Pics of Sieun 

1. The prettiest Korean princess

Sieun (STAYC) - Biography, Profile, Facts, and Career

2. She looks like a goddess with the blonde hair

Sieun (STAYC) - Biography, Profile, Facts, and Career

3. Sieun looks so chic in this photo

Sieun (STAYC) - Biography, Profile, Facts, and Career

4. Denim makes she looks so pretty

Member of STAYC) - Biography, Profile, Facts, and Career

5. What a lovely girl

Member of STAYC) - Biography, Profile, Facts, and Career

A powerful actress and charming singer; that’s our conclusion for our princess Sieun. She is really a talented girl and we are really proud of her.


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