Los 40 Argentina is a popular radio station broadcasting from Buenos Aires, Argentina. It is part of the international Los 40 network, which originated in Spain. The station plays contemporary hit music, focusing on pop, dance, and Latin genres in both Spanish and English.
Los 40 Argentina began broadcasting in 2006, taking over the frequency previously held by FM Hit Argentina. It quickly became one of the leading music stations in the country, targeting a young audience aged 12-30.
The station's programming includes music blocks like "LOS40 Hot Mix" as well as shows such as:
- "Del 40 al 1" - A countdown of the top 40 hits hosted by Cris Vanadía
- "LOS40 Weekend"
- "LOS40 Baila"
- "LOS40 Party" hosted by Martín Catramado
Los 40 Argentina can be heard on 105.5 FM in Buenos Aires, as well as through online streaming and mobile apps. The station is now owned by Grupo Santamartah, which acquired it from PRISA Radio in 2021.