Cristais Paulista is a municipality in the state of São Paulo in Brazil. The population is 8,718 (2020 est.) in an area of . The elevation is 996 m.
Coffee is an agricultural product in the area.
In telecommunications, the city was served by until 1973, when it began to be served by . 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).