K-pop Girl Groups

Youngest Members Profile: Full Names, Ages, Heights, Weights and More

June 28, 2026 | By
Youngest members are Suhbin, Youngseo, Yejin, Minjeong, and Sejin.
OriginSeoul, South Korea
DebutSeptember 07, 2016
Number of Members5
MembersSuhbin
Youngseo
Yejin
Minjeong
Sejin
Former MemberJiyoon
Oldest MemberYoungseo
Youngest Member (Maknae)Sejin

Youngest Members Profile

Suhbin

Youngest member Suhbin
Full NameWon Suhbin
BirthdayJuly 27, 2011
BirthplaceN/A
Age14 years and 11 months old
Height5 feet 1 inches (155 cm)
Weight99 lbs (45 kg)
Zodiac SignLeo
Chinese Zodiac SignRabbit
MBTIENTP
PositionLeader, Vocal
Instagram@kpopsuhbin

Youngseo

Youngest member Youngseo
Full NameNa Youngseo
BirthdayNovember 12, 2008
BirthplaceN/A
Age17 years and 7 months old
HeightN/A
Zodiac SignScorpio
Chinese Zodiac SignRat
MBTIISFP
PositionVisual
Instagram@0seo1112

Yejin

Youngest member Yejin
Full NameKim Yejin
BirthdayApril 2, 2009
BirthplaceN/A
Age17 years and 2 months old
HeightN/A
Zodiac SignAries
Chinese Zodiac SignOx
MBTIESFP
Instagram@yejin09_w

Minjeong

Youngest member Minjeong
Full NameKim Minjeong
BirthdayAugust 19, 2011
BirthplaceN/A
Age14 years and 10 months old
HeightN/A
Zodiac SignLeo
Chinese Zodiac SignRabbit
MBTIENFP
Instagram@m1nje.ong

Sejin

Youngest member Sejin
Full NameKo Sejin
BirthdayNovember 23, 2011
BirthplaceN/A
Age14 years and 7 months old
HeightN/A
Zodiac SignSagittarius
Chinese Zodiac SignRabbit
MBTIENTP
PositionMaknae
Instagram@se.j0xn

Former Member Profile

Jiyoon

Youngest former member Jiyoon
Full NameKim Jiyoon
BirthdayNovember 7, 2010
BirthplaceN/A
Age15 years and 7 months old
HeightN/A
Zodiac SignLeo
Chinese Zodiac SignRabbit
Instagram@j.yoon.__

Member Ages: Oldest to Youngest

MemberBirthdayAge
YoungseoNovember 12, 200817 years, 7 months, 16 days old
YejinApril 2, 200917 years, 2 months, 26 days old
SuhbinJuly 27, 201114 years, 11 months, 1 day old
MinjeongAugust 19, 201114 years, 10 months, 9 days old
SejinNovember 23, 201114 years, 7 months, 5 days old

FAQs

How many members are in Youngest?

Youngest is a 5-member K-pop girl group. The group consists of Suhbin, Youngseo, Yejin, Minjeong, and Sejin.

When did Youngest debut?

Youngest debuted on September 07, 2016, with their single Stand up.

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