| Gustavo Alessandri Valdés | |
| Birth Date: | 1929 4, df=y |
| Birth Place: | Santiago, Chile |
| Death Place: | Santiago, Chile |
| Office: | Member of the Chamber of Deputies of Chile |
| Constituency: | 20th District |
| Term Start: | 11 March 1998 |
| Term End: | 11 March 2002 |
| Predecessor: | Ángel Fantuzzi |
| Successor: | Cristian Pareto |
| Term Start1: | 15 May 1969 |
| Term End1: | 21 September 1973 |
| Constituency1: | 7th Departamental Agrupation (Metropolitan Region) |
| Successor1: | Dissolution of the Office (1973 Chilean coup d'etat) |
| Term Start2: | 15 May 1961 |
| Term End2: | 15 May 1965 |
| Office3: | Mayor of Santiago Centro |
| Term Start3: | 21 July 1987 |
| Term End3: | 4 January 1989 |
| Appointer3: | Augusto Pinochet |
| Predecessor3: | Carlos Bombal |
| Successor3: | Máximo Honorato |
| Office4: | Mayor of La Florida |
| Term Start4: | 1958 |
| Term End4: | 1961 |
| Predecessor4: | Vicente Valdés |
| Successor4: | Luis Matte Valdés |
| Alma Mater: | Pontifical Catholic University of Chile (LL.B) |
| Occupation: | Politician |
| Profession: | Lawyer |
| Spouse: | Verónica Balmaceda (div.) Constanza Vergara |
| Children: | (Six, among them Felipe[1] and Jorge) |
Gustavo Alessandri Valdés (30 April 1929 – 18 July 2017) was a Chilean politician and lawyer who was born in Santiago, served as mayor of its central commune from 1987 through 1989, as MP from 1961 through 1965, again from 1969 through 1971 and finally from 1998 to 2002, as a member of the National Renewal Party until his death in his hometown, aged 88.[2] [3] [4]