| Alfonso de Urresti | |
| Birth Date: | 1966 3, df=y |
| Birth Place: | Viña del Mar, Chile |
| Office: | Member of the Senate of Chile |
| Constituency: | 16th Circunscription (Los Ríos Region) |
| Term Start: | 11 March 2014 |
| Predecessor: | Eduardo Frei Ruíz-Tagle |
| Office1: | Member of the Chamber of Deputies of Chile |
| Constituency1: | 53rd District (Corral, Lanco, Máfil, Mariquina and Valdivia) |
| Term Start1: | 11 March 2006 |
| Term End1: | 11 March 2014 |
| Predecessor1: | Exequiel Silva Ortíz |
| Successor1: | Iván Flores |
| Party: | Socialist Party |
| Occupation: | Politician |
| Profession: | Lawyer |
| Parents: | Alfonso Luis de Urresti Lucy Berta Longton Guerrero |
| Relatives: | Arturo Longton (uncle) Arturo Longton Herrera (cousin) Andrés Longton (cousin)[1] |
Alfonso de Urresti Longton (born 7 March 1966) is a Chilean lawyer and politician.[2]