The Lightweight competition was the fourth lightest class featured at the 2011 World Amateur Boxing Championships, held at the Heydar Aliyev Sports and Exhibition Complex. Boxers were limited to a maximum of in body mass.
| Gold | |
| Silver | |
| Bronze | |
Domenico Valentino (semifinals)
Albert Selimov (first round)
Yasniel Toledo (Second Place)
Vasyl Lomachenko (champion)
Fatih Keleş (first round)
David Joyce (third round)
Elvin Isayev (second round)| Round of 128 | |||
|---|---|---|---|
| Score | |||
| 13–6 | |||
| 11–15 | |||