Kim Sung-hyun (, born 26 August 1994) is a field hockey player from South Korea, who plays as a midfielder.
Career
Senior national team
Kim made his senior international debut in 2019.
Throughout his career he has medalled with the national team on numerous occasions, winning gold at the 2021 Asian Champions Trophy in Dhaka, and the 2022 Asian Cup in Jakarta. He also won bronze at the 2018–19 FIH Series Finals in Le Touquet. In addition, he won silver at the 2022 edition of the Sultan Azlan Shah Cup.
In 2023, Kim was named to the national team for the FIH World Cup in Bhubaneswar and Rourkela, as well as the Asian Games in Hangzhou.