Yeonjun from TXT (Tomorrow X Together) was born on September 13, 1999, so as of 2026 he is 26 years old (international age) or 27 in Korean age.

Basic Info

  • Full name : Choi Yeon Jun (최연준)
  • Stage name : Yeonjun (연준)
  • Birthday : September 13, 1999
  • Birthplace : Seongbuk District, Seoul, South Korea
  • Zodiac sign : Virgo
  • Blood type : A

Age in 2026

  • International age : 26 years old (born in 1999, so 2026 − 1999 = 27, but since his birthday hasn’t passed yet in January 2026, he is still 26)
  • Korean age : 27 years old (Korean age counts the year of birth as age 1, plus one extra year added on January 1)

Role in TXT

  • He is the oldest member of TXT
  • Position: Main dancer, lead rapper, vocalist, visual, and maknae-line member (despite being the oldest, he’s in the “maknae line” with Beomgyu and Huening Kai)
  • Debuted with TXT on March 4, 2019, with the mini-album The Dream Chapter: STAR
  • Made his solo debut in September 2024 with the single “Ggum” and the EP No Labels: Part 01 in November 2025

Fun Facts

  • He created TXT’s official hand logo/gesture
  • Trained for about 4–5 years before debuting
  • Lived in the U.S. for two years as a child to study English
  • Attended Korean Arts High School and later enrolled in Global Cyber University

So right now, Yeonjun is 26 internationally and 27 in Korean age, and he’s the oldest member of TXT.

Information gathered from public forums or data available on the internet and portrayed here.