Lee Dong-jun

Busan IPark

On 21 February 2017, Lee signed with K League 2 club Busan IPark. On 25 March, he made his professional debut in a 1–0 defeat to Bucheon FC 1995. He was primarily used as a substitute for his first two years at the club. During the 2019 season, Lee became Busan's key player under new manager Cho Deok-je, appearing in all 36 matches including 32 matches as a starter. While leading the club to a second-place finish, he had 13 goals and seven assists, and won eight penalties. He was named the K League 2 Most Valuable Player. Afterwards, Busan succeeded in promoting to the K League 1 through the promotion play-offs.

Ulsan Hyundai

After Busan was relegated to the K League 2 at the end of the 2020 season, another K League 1 club Ulsan Hyundai made Lee an offer. When playing for Ulsan in 2021, he directly exerted his influence, becoming the club's top goalscorer. Ulsan failed to win the league title by finishing second, but he was selected for the K League 1 Best XI.

Hertha BSC

On 29 January 2022, Lee signed a contract until 2025 with Bundesliga club Hertha BSC. He had difficulty in adapting to duels against Bundesliga players, revealing his physical weakness. He suffered frequent injuries, making only four appearances for a year at Hertha.

Jeonbuk Hyundai Motors

In December 2022, Lee returned to South Korea to sign for K League 1 club Jeonbuk Hyundai Motors. During the 2023 season, he struggled to recover his physical condition and…

In January 2020, Lee scored against Iran and China in the group stage of the 2020 AFC U-23 Championship. After winning the tournament, he participated at the 2020 Summer Olympics. On 25 March 2021, Lee made his debut for the South Korea national team in a 3–0 friendly defeat to Japan.

As of 7 December 2025

Jeonbuk Hyundai Motors

Korea Cup: 2025 K League Super Cup: 2026 South Korea U23

AFC U-23 Championship: 2020 Individual

K League 2 Most Valuable Player: 2019 K League 2 Best XI: 2019 K League 1 Best XI: 2021