| Nam Su-Il | |
| Birth Date: | 26 June 1912 |
| Birth Place: | Keijō, Keiki-dō, Korea, Empire of Japan |
| Death Date: | [1] |
| Weight: | 60 kg |
| Sport: | Weightlifting |
| Weight Class: | 60 kg |
| Team: | National team |
| Updated: | 6 October 2016 |
Nam Su-Il (26 June 1912 - 24 May 1972) was a South Korean male weightlifter, who competed in the featherweight class and represented South Korea at international competitions. He won the silver medal at the 1947 World Weightlifting Championships in the 60 kg category. He participated at the 1948 Summer Olympics in the 60 kg event and at the 1952 Summer Olympics in the 60 kg event.[2] He set three featherweight world records in 1938-40 – two in the press and one in the total.