CBN São Paulo is a Brazilian radio station based in São Paulo, Brazil. It was launched on October 1, 1991, as part of the CBN (Central Brasileira de Notícias) network, pioneering the all-news radio format in Brazil. The station broadcasts on 90.5 MHz FM, having moved from its original AM frequency in 2018.

As the flagship station of the CBN network, CBN São Paulo provides 24/7 news coverage, focusing on local, national, and international events. Its programming includes news bulletins, analysis, interviews, and specialized shows covering topics such as economics, politics, sports, and culture.

Key programs include "CBN São Paulo," which covers local news and issues, "Jornal da CBN" for national news, and "O Mundo em Meia Hora" for international coverage. The station also features sports programming, including live coverage of major football matches.

CBN São Paulo has adapted to digital platforms, offering live streaming, on-demand content, and an active presence on social media. The station is known for its credible journalism and in-depth analysis, catering primarily to an audience interested in staying informed about current affairs.