Leszek Błażyński (March 5, 1949 in Ełk – August 6, 1992 in Katowice) was a boxer from Poland, who twice won the bronze medal in the men's flyweight (– 51 kg) division at the Summer Olympics. He first did so in 1972, when Munich hosted the Games. Four years later in Montreal, Canada he once again captured the bronze, after a loss in the semifinals against eventual winner Leo Randolph of the United States. Błażyński died in 1992, aged 43.
- 1st round bye
- Defeated Chander Narayanan (India) 3-2
- Defeated Arturo Delgado (Mexico) 5-0
- Defeated You Man-Chong (South Korea) 3-2
- Lost to Georgi Kostadinov (Bulgaria) 0-5