The 2008 Delta del Paraná wildfires were a series of wildfires in the Delta del Paraná islands located mainly in Entre Ríos, Argentina. It was an unprecedented event that covered major cities as Buenos Aires and Rosario in smoke, affecting the health of millions of people. The first fires were detected on 13 April 2008, and lasted until April 25 – 26, when rain extinguished most of them. Buenos Aires was heavily affected between April 15 and April 20. The fires happened again in 2020, with the 2020 Delta del Paraná wildfires.