Estadio Municipal Nelson Oyarzún Arenas

Estadio Bicentenario Municipal Nelson Oyarzún is a stadium located in Chillán, Chile and owned by the Chillán municipality. It is home to Ñublense football club. It is named after Nelson Oyarzún Arenas, a Ñublense coach. It was inaugurated in 1961 and has a capacity of 12,000.

In 2007 the stadium was selected as a venue for the 2008 FIFA U-20 Women's World Cup, and to comply with FIFA standards, it was completely demolished and rebuilt, its capacity was decreased from 17,500 to 12,000; and a roof covering all seats was built. The stadium was re-inaugurated on November 2, 2008.