Opera house

This article is about the type of entertainment venue. For other uses, see Opera House (disambiguation).
Teatro di San Carlo in Naples, the world's oldest working opera house.
The Sydney Opera House is one of the world's most recognisable opera houses and landmarks.

An opera house is a theater building used for performances of opera. Like many theaters, it usually includes a stage, an orchestra pit, audience seating, backstage facilities for costumes and building sets, as well as offices for the institution's administration.

While some venues are constructed specifically for operas, other opera houses are part of larger performing arts centers. Indeed, the term opera house is often used as a term of prestige for any large performing arts center.