tripleS
South Korea · Official roster: 24 (24 birthdays recorded)
tripleS members from oldest to youngest: YooYeon (25), Mayu (24), Xinyu (24), NaKyoung (23), SoHyun (23), DaHyun (23), Nien (23), SeoYeon (23), JiYeon (22), Kotone (22), ChaeYeon (21), YuBin (21), JiWoo (20), Kaede (20), ShiOn (20), Lynn (20), Sullin (19), HyeRin (19), ChaeWon (19), HaYeon (19), SooMin (19), YeonJi (18), JooBin (17), SeoAh (16). The oldest is YooYeon, born February 9, 2001; the youngest is SeoAh, born June 11, 2010.
Birthdays of all members
| Birthday | Member | Other spellings |
|---|---|---|
| February 9 | YooYeon 金琉然김유연キム・ユヨンKim Yooyeon | 琉然 |
| May 12 | Mayu 髙麗真友마유マユ | Kōma Mayu, 真友, 高麗真友 |
| May 25 | Xinyu 周心語신위シンウィーZhou Xinyu | 周心语, 心語 |
| October 13 | NaKyoung 金拏炅김나경キム・ナギョンKim Nakyoung | 拏炅 |
| October 13 | SoHyun 朴昭玹박소현パク・ソヒョンPark Sohyun | 昭玹 |
| January 8 | DaHyun 徐多賢서다현ソ・ダヒョンSeo Dahyun | 多賢 |
| June 2 | Nien 許念慈니엔ニエンHsu Nien Tzu | 念 |
| August 6 | SeoYeon 尹舒妍윤서연ユン・ソヨンYoon Seoyeon | 尹舒姸, 舒妍 |
| February 13 | JiYeon 池諝娫지서연ジヨンJi Seoyeon | 諝娫, 지연 |
| March 10 | Kotone 嘉味元琴音코토네コトネKamimoto Kotone | 琴音 |
| December 4 | ChaeYeon 金采嬿김채연キム・チェヨンKim Chaeyeon | 采嬿 |
| February 3 | YuBin 孔裕彬공유빈コン・ユビンGong Yubin | 裕彬 |
| October 24 | JiWoo 李知禹이지우イ・ジウLee Jiwoo | 知禹 |
| December 20 | Kaede 山田楓카에데カエデYamada Kaede | 楓 |
| April 3 | ShiOn 朴示溫박시온パク・シオンPark Shion | 示溫 |
| April 12 | Lynn 川上凜린リンKawakami Rin | 凜 |
| November 30 | Sullin 설린ソルリンPirada Bunraksa | พิรดา บุญรักษา |
| April 12 | HyeRin 鄭慧潾정혜린チョン・ヘリンJeong Hyerin | 慧潾 |
| May 2 | ChaeWon 金采湲김채원キム・チェウォンKim Chaewon | 采湲 |
| August 1 | HaYeon 丁하연チョン・ハヨンJeong Hayeon | 夏妍, 정하연 |
| October 3 | SooMin 金秀珉김수민キム・スミンKim Soomin | 秀珉 |
| January 8 | YeonJi 郭姸知곽연지クァク・ヨンジKwak Yeonji | 妍知 |
| January 16 | JooBin 周彬주빈ジュ・ビンJoo Bin | — |
| June 11 | SeoAh 鄭楷潾서아ソアJeong Haerin | 楷潾, 정해린 |
Roster source: Chinese Wikipedia: tripleS — member list (official triplescosmos.com is only a parking page; the roster is in the Cosmo app) (retrieved 2026-09-25)
Age ranking of members (oldest to youngest)
We have full birth dates for 24 of 24 members (members with only a birth month and day are left out, since their age can’t be calculated). Ages update to today’s date.
| Rank | Member | Birthday | Age |
|---|---|---|---|
| 1 | YooYeon | February 9, 2001 | 25 |
| 2 | Mayu | May 12, 2002 | 24 |
| 3 | Xinyu | May 25, 2002 | 24 |
| 4 | NaKyoung | October 13, 2002 | 23 |
| 5 | SoHyun | October 13, 2002 | 23 |
| 6 | DaHyun | January 8, 2003 | 23 |
| 7 | Nien | June 2, 2003 | 23 |
| 8 | SeoYeon | August 6, 2003 | 23 |
| 9 | JiYeon | February 13, 2004 | 22 |
| 10 | Kotone | March 10, 2004 | 22 |
| 11 | ChaeYeon | December 4, 2004 | 21 |
| 12 | YuBin | February 3, 2005 | 21 |
| 13 | JiWoo | October 24, 2005 | 20 |
| 14 | Kaede | December 20, 2005 | 20 |
| 15 | ShiOn | April 3, 2006 | 20 |
| 16 | Lynn | April 12, 2006 | 20 |
| 17 | Sullin | November 30, 2006 | 19 |
| 18 | HyeRin | April 12, 2007 | 19 |
| 19 | ChaeWon | May 2, 2007 | 19 |
| 20 | HaYeon | August 1, 2007 | 19 |
| 21 | SooMin | October 3, 2007 | 19 |
| 22 | YeonJi | January 8, 2008 | 18 |
| 23 | JooBin | January 16, 2009 | 17 |
| 24 | SeoAh | June 11, 2010 | 16 |
tripleS Members’ Zodiac Signs
- ♈ Aries: ShiOn, Lynn, HyeRin
- ♉ Taurus: Mayu, ChaeWon
- ♊ Gemini: Xinyu, Nien, SeoAh
- ♌ Leo: SeoYeon, HaYeon
- ♎ Libra: NaKyoung, SoHyun, SooMin
- ♏ Scorpio: JiWoo
- ♐ Sagittarius: ChaeYeon, Kaede, Sullin
- ♑ Capricorn: DaHyun, YeonJi, JooBin
- ♒ Aquarius: YooYeon, JiYeon, YuBin
- ♓ Pisces: Kotone
Only members with a known birthday are included. Sign boundaries: zodiac index
This page lists all 24 members on tripleS’s official roster. 24 of them have their own page on this site (our inclusion rule: someone has held a support event for them, or a verifiable identity or birthday source exists). The rest are marked “roster only” and appear only in this table. Birthdays are listed only when we find a verifiable source; otherwise they’re marked “no verifiable source found.” We never fill gaps with guesses. Spotted an error, or have a verifiable official source? Email service@joelin.cc. (email us a report)
Want to hold a support event for tripleS?
Group support usually centers on debut anniversaries and concerts. Each member’s birthday is in the table above.
FAQ
- What are the birthdays of tripleS's members?
- tripleS’s official roster has 24 members. Those with a verifiable birthday on this site: YooYeon February 9, Mayu May 12, Xinyu May 25, NaKyoung October 13, SoHyun October 13, DaHyun January 8, Nien June 2, SeoYeon August 6, JiYeon February 13, Kotone March 10, ChaeYeon December 4, YuBin February 3, JiWoo October 24, Kaede December 20, ShiOn April 3, Lynn April 12, Sullin November 30, HyeRin April 12, ChaeWon May 2, HaYeon August 1, SooMin October 3, YeonJi January 8, JooBin January 16, SeoAh June 11. Each birthday’s source is cited on this page and on the person’s own page.
- How many tripleS members are listed on this site?
- tripleS: Official roster: 24. Of these, 24 have a verifiable birthday recorded on this site. This page lists all 24 members on tripleS’s official roster. 24 of them have their own page on this site (our inclusion rule: someone has held a support event for them, or a verifiable identity or birthday source exists). The rest are marked “roster only” and appear only in this table. Birthdays are listed only when we find a verifiable source; otherwise they’re marked “no verifiable source found.” We never fill gaps with guesses. Spotted an error, or have a verifiable official source? Email service@joelin.cc.
- What is the age order of tripleS's members? Who is the oldest?
- We have birth years for 24 of 24 tripleS members (members with only a birth month and day can’t be ranked by age). Ordered from oldest to youngest: YooYeon (born February 9, 2001), Mayu (born May 12, 2002), Xinyu (born May 25, 2002), NaKyoung (born October 13, 2002), SoHyun (born October 13, 2002), DaHyun (born January 8, 2003), Nien (born June 2, 2003), SeoYeon (born August 6, 2003), JiYeon (born February 13, 2004), Kotone (born March 10, 2004), ChaeYeon (born December 4, 2004), YuBin (born February 3, 2005), JiWoo (born October 24, 2005), Kaede (born December 20, 2005), ShiOn (born April 3, 2006), Lynn (born April 12, 2006), Sullin (born November 30, 2006), HyeRin (born April 12, 2007), ChaeWon (born May 2, 2007), HaYeon (born August 1, 2007), SooMin (born October 3, 2007), YeonJi (born January 8, 2008), JooBin (born January 16, 2009), SeoAh (born June 11, 2010). The oldest is YooYeon, and the youngest is SeoAh.
- What are the zodiac signs of tripleS’s members?
- Based on their birthdays: Aries: ShiOn, Lynn, HyeRin; Taurus: Mayu, ChaeWon; Gemini: Xinyu, Nien, SeoAh; Leo: SeoYeon, HaYeon; Libra: NaKyoung, SoHyun, SooMin; Scorpio: JiWoo; Sagittarius: ChaeYeon, Kaede, Sullin; Capricorn: DaHyun, YeonJi, JooBin; Aquarius: YooYeon, JiYeon, YuBin; Pisces: Kotone. Signs use the month and day only, with the boundary dates explained on our zodiac pages.
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