| Francisco Prat | |
| Birth Date: | 1948 4, df=y |
| Birth Place: | Santiago, Chile |
| Office: | Member of the Senate of Chile |
| Constituency: | Los Lagos Region (14th Circumscription) |
| Term Start: | 11 March 1990 |
| Term End: | 11 March 2002 |
| Predecessor: | Creation of the Circumscription |
| Successor: | Alberto Espina |
| Office1: | Governor of Malleco Province |
| Term Start1: | 1989 |
| Term End1: | 11 March 1990 |
| Appointer1: | Augusto Pinochet |
| Successor1: | Roberto Parant |
| Occupation: | Politician Entrepreneur[1] |
| Profession: | Lawyer |
| Alma Mater: | University of Chile (LL.B) |
| Parents: | Jorge Prat María de la Luz Alemparte |
| Relatives: | Arturo Prat Chacón (great-grandfather)[2] |
| Spouse: | Patricia Errázuriz |
| Children: | Eleven |
Francisco Javier Prat Alemparte (born 26 April 1948) is a Chilean politician who served as senator.