Luan Jin is a retired male badminton player from China who rated among the world's very best singles players in the early to mid-1980s when China gained entry into the International Badminton Federation (now Badminton World Federation).
Luan won the prestigious All England Open Badminton Championships in men's singles in 1983, reversing a loss to Morten Frost in the 1982 final. The same year he also won the 1983 World Badminton Grand Prix. He was a key member of China's Thomas Cup (men's international) teams of 1982 and 1984, the first of which narrowly won and the second of which narrowly lost the World Team title to arch-rival Indonesia. In these final round Thomas Cup show-downs Luan defeated Rudy Hartono and Liem Swie King respectively, two of Indonesia's greatest-ever players.