| Sachin Nag শচীন নাগ | |
| Birth Date: | 1920 7, df=yes |
| Birth Place: | Varanasi, United Provinces of Agra and Oudh, British India |
| Death Place: | Calcutta, West Bengal, India |
| Height: | 183cm (72inches) |
| Strokes: | Freestyle, medley |
| Club: | Calcutta |
| Show-Medals: | y |
Sachin Nag (Bengali: শচীন নাগ; 5 July 1920 - 19 August 1987) was an Indian swimmer. He won the gold medal in men's 100 m freestyle at the 1951 Asian Games, the first ever gold medal for India at the Asian Games.[1] It remains the only gold medal won by India in Asian Games swimming as of the conclusion of the 2022 Asian Games. He was also a member of the bronze medal-winning Indian teams in the men's 4x100 m freestyle relay and the men's 3x100 m medley relay at the 1951 Asian Games.
He competed in the men's 100 m freestyle at the 1948 Summer Olympics.[2] He also competed in the water polo at the 1948 and 1952 Summer Olympics.[2] He scored four goals on behalf of India.[3]