| Cathy Barriga | |
| Birth Date: | 1973 4, df=y |
| Birth Place: | Santiago, Chile |
| Office: | Mayor of Maipú |
| Term Start: | 6 December 2016 |
| Term End: | 28 June 2021 |
| Predecessor: | Christian Vittori[1] |
| Successor: | Tomás Vodanovic[2] |
| Party: | Independent Democratic Union |
| Occupation: | Politician |
| Profession: | Psychologist |
| Spouse: | Joaquín Lavín León (2009–present) |
| Children: | Three |
| Relatives: | Joaquín Lavín (father-in-law)[3] |
Catherine Carolina Barriga Guerra (born 8 April 1973) is a television figure, licensed psychologist, and Chilean politician who served as mayor of Maipú. In January 2024, she was charged with fraud against the Treasury and falsification of public instruments, causing her to be placed under house arrest while the investigation continues.[4]