Houston Grand Opera (HGO) is an American opera company located in Houston, Texas. Founded in 1955 by German-born impresario Walter Herbert and three local Houstonians, the company is resident at the Wortham Theater Center. This theatre is also home to the Houston Ballet. In its history, the company has received a Tony Award, two Grammy Awards, and three Emmy Awards, the only opera company in the world to win these three honours. Houston Grand Opera is supported by an active auxiliary organization, the Houston Grand Opera Guild, established in October 1955.

The Wortham Theater Center is a performing arts center located in downtown Houston, Texas, United States. The Wortham Theater Center, designed by Eugene Aubry of Morris Architects, was built out of private funds totaling over $66 Million. The City of Houston owns the building, and the Houston First Corporation operates the facility.