Lee Kang-in (born 19 February 2001) is a South Korean attacking midfielder who currently plays for Atlético Madrid and the South Korea national team. A product of Valencia's youth academy, he made his professional debut in 2018 at age 17, becoming the youngest South Korean to debut professionally in Europe and later winning the Copa del Rey. After moving to Mallorca in 2021, he joined Paris Saint-Germain in 2023, where he secured three Ligue 1 titles, two Coupes de France, and back-to-back UEFA Champions League trophies in 2025 and 2026—the first Asian in global history to win multiple UCL titles. In 2019, he earned the Golden Ball at the FIFA U-20 World Cup and Asian Young Footballer of the Year, having debuted for the senior national team that same year and representing it at the 2022 and 2026 World Cups. Known for his exceptional dribbling, he ranked among Europe's top dribblers during his Mallorca days and holds multiple youth records in Spanish football.