| Official Name: | Itariri |
| Settlement Type: | Municipality |
| Pushpin Map: | Brazil |
| Pushpin Map Caption: | Location in Brazil |
| Coordinates: | -24.2889°N -47.1739°W |
| Subdivision Type: | Country |
| Subdivision Name: | Brazil |
| Subdivision Type1: | Region |
| Subdivision Name1: | Southeast |
| Subdivision Type2: | State |
| Subdivision Name2: | São Paulo |
| Subdivision Type3: | Mesoregion |
| Subdivision Type4: | Microregion |
| Subdivision Type5: | Metrop. region |
| Leader Title: | Mayor |
| Area Total Km2: | 273.67 |
| Population Total: | 17,598 |
| Population As Of: | 2020 [1] |
| Population Density Km2: | auto |
| Timezone1: | BRT |
| Utc Offset1: | -3 |
| Postal Code Type: | Postal code |
| Postal Code: | 11760-xxx |
| Area Code Type: | Area code |
| Area Code: | (00)55-11 |
| Website: | www.itariri.sp.gov.br |
Itariri is a municipality in the state of São Paulo in Brazil. The population is 17,598 (2020 est.) in an area of 273.67 km².[2] The elevation is 55 m. Itariri is situated on the BR-101 highway, 18 km west of the coastal city Peruíbe.
The municipality was created by state law in 1948.[3]
The municipality contains a small part of the Juréia-Itatins Ecological Station, a strictly protected area of well-preserved Atlantic Forest created in 1986.
In telecommunications, the city was served by Companhia de Telecomunicações do Estado de São Paulo until 1975, when it began to be served by Telecomunicações de São Paulo.[4] In July 1998, this company was acquired by Telefónica, which adopted the Vivo brand in 2012.
The company is currently an operator of cell phones, fixed lines, internet (fiber optics/4G) and television (satellite and cable).[5]