Mega 98.3 is an Argentine radio station broadcasting from Buenos Aires. Launched on April 24, 2000, it quickly became a landmark in the radio landscape, reaching the top spot in ratings within just 30 days. The station's main distinctive feature is its programming focused on Argentine rock music, reflected in its slogan "puro rock nacional" (pure national rock).

The station's lineup includes entertainment programs, magazines, and music shows. Mega 98.3 has provided a platform for both established and emerging artists in the Argentine rock scene, not only playing their music but also hosting live performances and interviews. This approach has made the station a tool for connecting generations through music.

In June 2024, Mega 98.3 inaugurated the "Charly García Studio" for streaming transmissions, further cementing its commitment to Argentine rock. The station is owned by Grupo Indalo, along with other media outlets such as Radio 10, Radio One 103.7, Vale 97.5, and Pop Radio 101.5.

Mega 98.3's programming includes shows like "Ruleta Rusa," "Todo Lo Demás También," "Reloj de Plastilina," "Megadelivery," and "Reyes de la Noche," offering a mix of music and entertainment throughout the day.