Park Hang Seo is a South Korean football manager and former player. He is the manager of the Vietnam national football team.
On 29 September 2017, Park was appointed head coach of the Vietnam national football team. Also in charge of the under-23 side, the team reached the finals of the 2018 AFC U-23 Championship for the first time. At the 2018 Asian Games, the U-23 side also advanced to the semi-finals and finished fourth for the first time in 56 years, with Park earning praise for his management. On 15 December 2018, the Vietnamese team under Park won the AFF Championship after defeating Malaysia, 3–2 on aggregate, in the second leg of the finals in Mỹ Đình National Stadium of Hanoi. This was Vietnam’s first regional championship in ten years. In the 2019 AFC Asian Cup, Vietnam reached the quarter-finals but lost to eventual runner-up Japan, 1–0.