| Official Name: | Las Arañas |
| Subdivision Type: | Region |
| Subdivision Name: | Santiago Metropolitan |
| Subdivision Type1: | Province |
| Subdivision Name1: | Cordillera |
| Subdivision Type2: | Municipalidad |
| Subdivision Name2: | San José de Maipo |
| Subdivision Type3: | Comuna |
| Subdivision Name3: | San José de Maipo |
| Government Type: | Municipality |
| Leader Party: | RN |
| Leader Title: | Alcalde |
| Leader Name: | Luis Pezoa Álvarez |
| Population As Of: | 2017[1] |
| Population Total: | 181 |
| Demographics Type1: | Sex |
| Demographics1 Title1: | Men |
| Demographics1 Info1: | 103 |
| Demographics1 Title2: | Women |
| Demographics1 Info2: | 78 |
| Timezone: | Chilean Standard |
| Utc Offset: | -4 |
| Timezone Dst: | Chilean Daylight |
| Utc Offset Dst: | -3 |
| Area Code: | Country + town = 56 + 53 |
Las Arañas is a hamlet (es|caserío) in the Andes of Santiago Metropolitan Region, Chile.[1] It is located about 1086 m asl. in Cajón del Maipo, southeast of San José de Maipo. Its name means literally "The Spiders".