In 1977, the year he turned 18, he was picked for a youth national team. Accounts of the period differ by source. In 1981, after finishing at Hanyang University, he joined the works team Korea First Bank, and then served in the military with the army football team.
In 1984, the year he turned 25, he made his pro debut as a founding member of Lucky-Goldstar Hwangso. In 1985, he was part of the team’s league title and was named to the Best 11. In 1988, he ended his playing career.
In 1989, he began coaching as a coach at his former club. In 1994, he went to the U.S. World Cup as a trainer for the national team.
In 2002, he was assistant coach under Guus Hiddink as Korea reached the World Cup semifinals, then managed the team at the Busan Asian Games that autumn, won bronze and left his post in October. In 2003, he moved to the Pohang Steelers as assistant coach. In 2005, he became the first manager of Gyeongnam FC, founded in his home province. At the end of 2007, he took charge of the Jeonnam Dragons. In 2010, he stepped down from Jeonnam, taking responsibility for poor results.
At the end of 2011, he became manager of Sangju Sangmu. In 2013, he won the inaugural K League Challenge title. He says it was the first title he had won as a manager. In 2015, he won the Challenge title again for promotion and left Sangju. In 2016, he returned to the touchline as manager of the National League’s Changwon City. In 2017, he signed a two-year contract with the Vietnam national team and moved to Hanoi.
The breakthrough yearIn January 2018, the year he turned 59, he led Vietnam’s under-23 team to the final of the AFC U-23 Championship and finished runner-up. His name appeared in portal real-time search rankings in Korea too, and in August the team reached the Asian Games semifinals, followed by the Suzuki Cup title in December.
In 2019, Vietnam reached the Asian Cup quarterfinals, and at the end of the year won its first SEA Games gold in 60 years. In January 2020, Vietnam went out in the group stage of the U-23 Championship. In 2021, he took Vietnam to the final round of Asian World Cup qualifying for the first time. In 2022, he beat China 3-1 for his first win in the final round. In January 2023, he ended five years and four months in Vietnam with the Mitsubishi Electric Cup runner-up finish.
In 2024, he appeared as technical director on JTBC’s The Gentlemen’s League. In 2025, he became a vice president of the Korea Football Association. In 2026, he stepped down as vice president after serving as head of the support team for the North America World Cup, and returned to the touchline as manager of Thailand’s second-division Kanchanaburi Power FC.
Park Hang-seo (born Oct 1, 1959) made his pro debut with Lucky-Goldstar Hwangso in 1984, the year he turned 25, and became known on Jan 27, 2018, the year he turned 59, when he led Vietnam’s under-23 team to second place at the AFC U-23 Championship. On Dec 15, 2018 he won the AFF Suzuki Cup.
Ages are by calendar year (the year minus the birth year), birthdays aside.