| Julio César Saguier | |
| Order: | 64 |
| Office: | Mayor of Buenos Aires |
| Term Start: | December 10, 1983 |
| Term End: | January 13, 1987 |
| President: | Raúl Alfonsín |
| Predecessor: | Guillermo Cioppo |
| Successor: | Facundo Suárez Lastra |
| Birth Date: | 18 July 1935 |
| Birth Place: | Buenos Aires, Argentina |
| Death Place: | Buenos Aires, Argentina |
| Party: | Radical Civic Union |
| Alma Mater: | University of Buenos Aires |
| Profession: | Lawyer |
Julio César Saguier (June 18, 1935 – January 13, 1987) was an Argentine lawyer and politician.