Estadio Rubén Marcos Peralta, Municipal stadium in Osorno, Chile.

Estadio Rubén Marcos Peralta is a football stadium in Osorno with a capacity of 11,000, of which about 80% of the seats are covered by a roof. Its stands are largely wooden, and since 2006 the pitch has been artificial turf. The El Morro section, rebuilt in reinforced concrete and reopened in 2011, connects to both ends of the galleries.

The stadium opened in 1940 as Municipal Parque Schott. In August 2006 work began to install an artificial pitch, inaugurated on 14 November 2006, when the venue was renamed Rubén Marcos in honour of the Osorno-born midfielder who played for Universidad de Chile and the Chilean national team in the 1960s. In 2010 remodelling of the El Morro stand began, with reinforced concrete terracing; it reopened on 28 August 2011, when Provincial Osorno beat Iberia 1-0 with a goal by Miguel Ojeda in the 89th minute.

The stadium's name honours Rubén Marcos Peralta, an Osorno-born midfielder who played for Universidad de Chile and the Chilean national team in the 1960s and scored for Chile at World Cups. Provincial Osorno plays its home matches here, and the ground's record crowd of 11,357 watched the club face Universidad de Chile on 26 August 1995.

The stadium sits in Osorno, and more than eighty percent of its seating is under a roof, so most spectators are sheltered from the city's frequent rain. The Morro stand, rebuilt in reinforced concrete and reopened on 28 August 2011, has its own toilets and a small concession space. It was built without a marquesina because of the climate.

The record attendance of 11,357 was set on 26 August 1995 in a Primera División match between Provincial Osorno and Universidad de Chile. The figure exceeds the stadium's listed capacity of 10,000, so the ground was filled beyond its official seating.