Lee Kyu-sup (born November 13, 1977) is a South Korean basketball coach and retired player.

During the team's successful run to the 2005-06 championship, he was a core member of a formidable squad that included Kang Hyuk, Lee Jung-suk and Seo Jang-hoon.

Due to his and Seo's height, the team's quick and physical offensive style was nicknamed "high altitude basketball" by the press.

At the FIBA Asia Championship, Lee helped the Koreans to a seventh-place finish while averaging 5.5 points per game, including a game-high 28 in Korea's 122-54 preliminary round win over Sri Lanka.

[11] His older brother Lee Heung-seop is also a former basketball player but went into sports management after a brief playing career.