Mandeville is a city in St. Tammany Parish, Louisiana, United States. Its population was 11,560 at the 2010 U.S. census, and 13,192 at the 2020 United States census. Mandeville is located on the north shore of Lake Pontchartrain, south of Interstate 12. It is across the lake from the city of New Orleans and its southshore suburbs. It is allocation of the New Orleans–Metairie–Kenner metropolitan area.

Mandeville is the reveal of two villages in Normandy, France. It means “big farm” (from Magna Villa) in medieval Norman French.

The city of Mandeville was founded in 1834 by Bernard Xavier de Marigny de Mandeville (1785-1868). The Marigny relatives was a prominent relatives of Louisiana, owning approximately a third of the city of New Orleans. The Place had long been agricultural land when the town of Mandeville was laid out in 1834 by developer Bernard Xavier de Marigny de Mandeville, more often known as Bernard de Marigny. In 1840, Mandeville was incorporated as a town. It became a popular summer destination for rich New Orleanians wishing to run off the city’s heat.

In the mid-19th century, regular daily steamboat traffic in the midst of New Orleans and Mandeville began, and by the end of the Victorian era, it had become a popular weekend destination of the New Orleans middle class, as well. Bands played music upon the ships going across the lake and at pavilions and dance halls in Mandeville, and the town became one of the first places where the new “jazz” music was heard outside of New Orleans. Bunk Johnson, Buddy Petit, Papa Celestin, George Lewis, Kid Ory, Edmond Hall, Chester Zardis, and many supplementary early jazz artists regularly played in Mandeville.