| Juan G. Sanguin | |
| Birth Date: | 1933 |
| Nationality: | Argentinian |
| Fields: | Astronomy |
| Workplaces: | "El Leoncito" Astronomical Complex |
Juan G. Sanguin (1933 – 7 January 2006[1]) was an Argentine astronomer.
Sanguin guided the studies about Small Solar System bodies at the "El Leoncito" Astronomical Complex (Complejo Astronómico El Leoncito, CASLEO) for more than 25 years.[2] He had collaborated with Carlos Cesco.[1]
He is known for the discovery of periodic comet 92P/Sanguin, on October 15, 1977, at the "El Leoncito" Astronomical Complex.
The asteroid 5081 Sanguin brings his name.[2]