KQ Entertainment K-pop boy group Ateez is further proof that talent and tenacity will get you everywhere, even if you don’t come from the biggest company. Over the years, they have built up a passionate fandom, resulting in things like selling over 750,000 albums in one day for a new release like The World Ep.2 : Outlaw. Ateez originally debuted on October 24, 2018 with the mini-album Treasure Ep.1 : All to Zero and the lead singles “해적왕 (Pirate King)” and “Treasure.” Suffice to say, it’s been a little while since then, so if you want to know how old the Ateez members are right now, here is the current age and birthday for Seonghwa, Hongjoong, Yunho, Yeosang, San, Mingi, Wooyoung, and Jongho.

How Old Explained: Age & Birthday for the Ateez Members

• Seonghwa is 26 years old and was born on April 3, 1998.
• Hongjoong is 25 years old and was born on November 7, 1998.
• Yunho is 25 years old and was born on March 23, 1999.
• Yeosang is 25 years old and was born on June 15, 1999.
• San is 25 years old and was born on July 10, 1999.
• Mingi is 24 years old and was born on August 9, 1999.
• Wooyoung is 24 years old and was born on November 26, 1999.
• Jongho is 23 years old and was born on October 12, 2000.

This means that, at the time that Ateez made their debut back in October 2018, their ages were as follows: Seonghwa was 20, Hongjoong was 19, Yunho was 19, Yeosang was 19, San was 19, Mingi was 19, Wooyoung was 18, and Jongho was newly 18. That makes Jongho the maknae, meaning he is the youngest member of the group. Seonghwa is the oldest member by seven months, but it is Hongjoong, the next oldest member, who is the leader of Ateez. In fact, Hongjoong is famously the first trainee that KQ Entertainment had, and he had submitted a mix tape prior to a time when KQ even held auditions for trainees. (Although, Ateez was not the first group managed by KQ; their group Block B was of course already popular at this time.)

If you are new to the ATINY fandom, use this birth date image to learn who is who among the Ateez members and how old they are:

With current age, age at debut, and all their birthdays, that is everything there is to know about how old the Ateez members are. Enjoy their dense body of music! For more about the group, check out precisely how tall the Ateez members are.

Ateez followed from Block B, and an essential part of Block B was Zico. If you want to catch up with Zico’s activities, check out his first self-produced boy group at his own label, Boynextdoor, who debuted in May 2023 and are of course a few years younger than the Ateez members. Alternatively, if you want to check out the little brother group to Ateez at KQ, then here is how old the Xikers members are.