Teatro Imperio, Historic theater in Valparaíso, Chile.

Teatro Imperio is a theater building in Valparaiso featuring classical Roman-style architecture with decorative gladiator shield lamps and imperial eagles adorning its facade. The interior contains ornate details and refined architectural elements that carry the Roman Empire theme throughout the structure.

Built by architect Ernesto Urquieta, the Teatro Imperio opened on 15 September 1922 on the site of the old Teatro Apolo, destroyed by fire in 1921. It served as a theatre until the late 1980s, when it was declared a National Heritage site. From 2002 its owner Manuel Uriarte installed an artisan fair inside; that fair ran until 17 September 2012, when a fire destroyed much of the interior and its 85 stalls, leaving the facade largely intact.

The name refers to the Roman Empire: lamps were shaped like gladiator shields, box decorations showed imperial eagles, and a chariot race with quadrigas was depicted above the stage mouth. From 2002 the owner Manuel Uriarte installed an artisan fair inside, active until the fire of 17 September 2012 destroyed it and its 85 stalls.

The theater stands on Avenida Pedro Montt, on the site of the former Teatro Apolo. The 2012 fire destroyed the interior and its 85 commercial stalls, so the building is not an active market; visits focus on the surviving facade. The structure is a National Heritage Site, and access to the interior may be restricted.

The main motif above the stage proscenium depicted a chariot race, or quadriga, in the arena of a Roman coliseum. The theatre's lamps were shaped like gladiator shields and the box decorations showed imperial eagles. The 2012 fire destroyed much of the interior, including 85 commercial stalls, but the facade survived largely intact.