| Onda Cero | |
| Area: | Spain |
| Format: | News, talk, sport and music |
| Language: | Spanish |
| Owner: | Atresmedia |
Onda Cero is a Spanish radio station, a part of Atresmedia media group. It is Spain's third-largest radio station by number of listeners as of 2019.
Among its programs are Más de Uno, Julia en la Onda, La Brújula, El Transistor, Por Fin no es Lunes (with Jaime Cantizano and América Valenzuela), and Radioestadio.