| Alfonso Quaranta | |
| Birth Date: | 1936 1, df=y |
| Birth Place: | Naples, Italy |
| Death Place: | Rome, Italy |
| Nationality: | Italian |
| Occupation: | Magistrate |
| Education: | University of Naples Federico II |
| Office: | President of the Constitutional Court of Italy |
| Term Start: | 6 June 2011 |
| Term End: | 27 January 2013 |
| Successor: | Franco Gallo |
| Office2: | Judge of the Constitutional Court of Italy |
| Term Start2: | 27 January 2004 |
| Term End2: | 27 January 2013 |
| Successor2: | Giancarlo Coraggio |
Alfonso Quaranta (2 January 1936 – 6 March 2023) was an Italian magistrate. He served as President of the Constitutional Court of Italy from 2011 to 2013.[1]
Quaranta died in Rome on 6 March 2023, at the age of 87.[2]