Orpheum Theater, Performance theater in Downtown New Orleans, United States

The Orpheum Theater is a Beaux Arts theater in New Orleans's Central Business District, designed by G. Albert Lansburgh and built in 1918, opening for vaudeville in 1921. Its 1,500-seat auditorium is a "vertical hall" construction, built so that every seat has a clear sight line and natural acoustics without amplifiers. A 2014 renovation added a hydraulic floor that lifts and lowers to create sloped or flat footing.

The Orpheum was designed by G. Albert Lansburgh, built in 1918 and opened for vaudeville in 1921. In 1983 it was scheduled for demolition but was bought by the New Orleans Philharmonic Symphony Orchestra, which spent $3 million renovating it; the orchestra folded in 1991. Floodwaters from Hurricane Katrina damaged it severely in 2005, and after Dr. Eric George bought it in February 2014 and completed a $13 million renovation, it reopened in August 2015.

The Louisiana Philharmonic Orchestra became the theater's anchor tenant after it reopened in 2015, and its musicians valued the auditorium for its acoustical purity. In the basement, the Double Dealer bar opened on January 24, 2020, named for the literary magazine that Sherwood Anderson and Tennessee Williams both drew on in New Orleans.

The Orpheum stands in the Central Business District of New Orleans, and the 2014 renovation added a hydraulic floor that can be raised or lowered to give sloped or flat footing for concerts and events. The same work expanded the marble lobby, enlarged seating and added bathrooms and several bars. A basement speakeasy, the Double Dealer, opened on January 24, 2020.

The auditorium features a special acoustic design that allows orchestral music to be performed and enjoyed without electronic amplification. This natural sound quality was deliberately built into the original architecture and continues to enhance the listening experience today.