Ryoo Eun Gyoo is a South Korean lacrosse player and coach. He graduated from Kyung Hee University with a bachelor's degree in Physical Education. He is the captain of the South Korean National Team and has represented the country in the 2018 and 2023 World Championships and the 2019 Asian Championships.
He appeared in AOA's "Heart Attack" MV alongside other lacrosse players. After completing his mandatory military service, he moved to the United States in an effort to join one of the teams of the professional lacrosse league, but the COVID-19 pandemic forced him to return home.
