Jang Dong-yoon is a South Korean actor. He is best known for his leading roles in the popular television series School 2017 (2017), The Tale of Nokdu (2019), Search (2020), Daily Dose of Sunshine (2023), Like Flowers in Sand (2023–2024), and My Man is Cupid (2023–2024).

School 2017 is a South Korean television series starring Kim Jung-hyun, Kim Se-jeong, Jang Dong-yoon, Han Sun-hwa, and Han Joo-wan. It aired on KBS2 from July 17 to September 5, 2017 every Monday and Tuesday at 22:00 (KST) for 23 episodes. The series is the seventh installment of KBS2's School franchise.