The Historic New Orleans Collection

The Historic New Orleans Collection (THNOC) is a museum, research center, and publisher dedicated to the study and preservation of the history and culture of New Orleans and the Gulf South region of the United States. It is located in New Orleans' French Quarter. The institution was established in 1966 by General and Mrs. L. Kemper Williams to keep their collection of Louisiana materials intact and available for research and exhibition to the public.

The Collection operates a museum, which includes the Williams Gallery, Louisiana History Galleries, the Williams Residence, a house museum, and a museum shop. The Williams Research Center, which opened in 1996, makes The Collection's holdings available to researchers. The holdings consist of some 35,000 library items, and approximately 350,000 photographs, prints, drawings, paintings, and other artifacts.

Museum exhibitions have been presented on a wide variety of topics relating to the history and culture of the Gulf South region and the peoples who have influenced it, ranging from the Battle of New Orleans to the development of New Orleans cuisine to more modern subjects, such as the Sugar Bowl and life after Hurricane Katrina. Many of the museum's exhibits are free and open to the public.