Miller Outdoor Theatre, Open-air theatre in Hermann Park, Houston, US.

Miller Outdoor Theatre is an open-air stage in Hermann Park, Houston, with 1,705 covered seats, 20 wheelchair spaces and a sloping lawn holding about 4,500 people. The 1968 building by Eugene Werlin and Associates has a 64-by-41-foot stage, 54 line sets and a raisable orchestra pit. The hill behind the seating, Miller's Hill, was formed in 1948 from dirt dug out for Fannin Street.

The first Miller Memorial Theatre opened in 1922, designed by William Ward Watkin as an amphitheater ringed by twenty Corinthian-style limestone columns and built by Tom Tellepsen. In 1948 Miller's Hill was formed from dirt excavated for Fannin Street. A new theatre, designed by Eugene Werlin and Associates and funded by voter-approved bonds, replaced it in 1968; refurbishment from 1996 to 1998 added restrooms, offices and a small east stage.

The theatre's name honours Jesse Wright Miller, a mining engineer and cotton broker whose 1922 gift created the original Miller Memorial Theatre. Its dedication plaque reads: "To the Arts of Music, Poetry, Drama and Oratory, by which the striving spirit of man seeks to interpret the words of God." Free performances run from March through November, and audiences bring blankets to the sloping lawn known as Miller's Hill.

The theatre stands at 6000 Hermann Park Drive in Hermann Park, with 1,705 seats under cover and 20 wheelchair spaces; the sloping lawn holds about 4,500 more. Performances are free and run from March through November, so arrive early for lawn spots and bring a blanket for the grass.

The building from the 1960s received recognition from engineering and construction organizations for its steel structure design. This recognition demonstrates that the design was considered noteworthy by structural specialists at the time.