SF9
韓國 Official roster: 8（8 birthdays recorded）
Debut date: Next debut anniversary: October 5
member Birthdays
| Birthday | member | Other spellings |
|---|---|---|
| November 23 | YOUNG BIN （김영빈） | Kim Young-bin, YOUNG BIN, ヨンビン |
| July 12 | IN SEONG （김인성） | IN SEONG, Kim In-seong, インソン |
| August 9 | JAE YOON （이재윤） | JAE YOON, Lee Jae-yoon, ジェユン |
| July 24 | DA WON （이상혁） | DA WON, Lee Sang-hyuk, ダウォン |
| July 4 | ZU HO （백주호） | Baek Zu-ho, ZU HO, ジュホ |
| February 28 | YOO TAE YANG （유태양） | YOO TAE YANG, Yoo Tae-yang, ユテヤン |
| May 11 | HWI YOUNG （김영균） | HWI YOUNG, Kim Young-kyun, フィヨン |
| January 17 | CHA NI （강찬희） | CHA NI, Kang Chan-hee, チャニ |
Roster source: SF9 JAPAN OFFICIAL SITE PROFILE（FNC ENTERTAINMENT） (obtained 2026-08-30)
member Age Ranking
This site has birth-year data for 8 out of 8 member (member with only month/day and no birth year are excluded, as age cannot be calculated). Oldest: IN SEONG (33 (in 2026; 32 before July 12)); youngest: CHA NI (26 (in 2026; 25 before January 17)).
| Rank | member | Birthday | Age |
|---|---|---|---|
| 1 | IN SEONG | July 12, 1993 | 33 (in 2026; 32 before July 12) |
| 2 | YOUNG BIN | November 23, 1993 | 33 (in 2026; 32 before November 23) |
| 3 | JAE YOON | August 9, 1994 | 32 (in 2026; 31 before August 9) |
| 4 | DA WON | July 24, 1995 | 31 (in 2026; 30 before July 24) |
| 5 | ZU HO | July 4, 1996 | 30 (in 2026; 29 before July 4) |
| 6 | YOO TAE YANG | February 28, 1997 | 29 (in 2026; 28 before February 28) |
| 7 | HWI YOUNG | May 11, 1999 | 27 (in 2026; 26 before May 11) |
| 8 | CHA NI | January 17, 2000 | 26 (in 2026; 25 before January 17) |
This page lists all 8 member per SF9's official roster; 8 of them have an individual page on this site (our inclusion criterion is "has anyone held a support event for them, or is there a verifiable identity/birthday source"). The rest are marked "roster-only entry" — listed in this table only, with no individual page. Birthdays are listed only when a verifiable source is found; otherwise marked "no verifiable source obtained," never filled in by guesswork. Found an error, or have a verifiable official source? Please email service@joelin.cc. (open a report email)
This site also records 1 support cases held for the group as a whole (出道週年紀念).
Want to hold a support event for SF9?
Group support is commonly held around debut anniversaries and concerts, with member birthdays each following the dates in the table above.
How & where to hold a photo booth event → Custom photo booth frame / full-booth booking →
FAQ
- What are the birthdays of SF9's member?
- SF9's official roster has 8 member in total; the ones with a verifiable birthday on this site are:YOUNG BIN November 23, IN SEONG July 12, JAE YOON August 9, DA WON July 24, ZU HO July 4, YOO TAE YANG February 28, HWI YOUNG May 11, CHA NI January 17. Every birthday's source is cited both on this page and on the individual's own page.
- How many member of SF9 are on this site?
- SF9 has Official roster: 8, of whom 8 have a verifiable birthday recorded on this site. This page lists all 8 member per SF9's official roster; 8 of them have an individual page on this site (our inclusion criterion is "has anyone held a support event for them, or is there a verifiable identity/birthday source"). The rest are marked "roster-only entry" — listed in this table only, with no individual page. Birthdays are listed only when a verifiable source is found; otherwise marked "no verifiable source obtained," never filled in by guesswork. Found an error, or have a verifiable official source? Please email service@joelin.cc.
- When did SF9 debut?
- SF9's debut date is October 5, 2016, so every year on October 5 marks the debut anniversary. In other words, SF9 debut in 2016. The debut anniversary is one of the most common occasions for group fan support.
- What is the age order of SF9's member? Who is the oldest?
- Among SF9's member, this site has birth-year data for 8 out of 8(member with only month/day and no birth year cannot have an age calculated, and are excluded from the ranking.) Ordered from oldest to youngest: IN SEONG（33 (in 2026; 32 before July 12)）, YOUNG BIN（33 (in 2026; 32 before November 23)）, JAE YOON（32 (in 2026; 31 before August 9)）, DA WON（31 (in 2026; 30 before July 24)）, ZU HO（30 (in 2026; 29 before July 4)）, YOO TAE YANG（29 (in 2026; 28 before February 28)）, HWI YOUNG（27 (in 2026; 26 before May 11)）, CHA NI（26 (in 2026; 25 before January 17)）. The oldest is IN SEONG, and the youngest is CHA NI.
View this page in Chinese → Back to group index Birthday calendar