Leingarten (help·info) is a municipality in the district of Heilbronn, Baden-Württemberg, Germany. It is situated 7 km west of Heilbronn. It was formed 1 January 1970, when the municipalities of Großgartach and Schluchtern merged.

Leingarten is situated in the west of the district of Heilbronn at the Lein, a feeder of the river Neckar, at the base of the Heuchelberg.

Leingarten consists of the formerly independent municipalities Großgartach und Schluchtern, both have grown seamlessly together since they merged.

Neighbouring cities and municipalities are (clockwise, beginning in the east): Heilbronn, Nordheim (Württemberg) and Schwaigern.

Visible from afar is Leingarten's trademark, the Heuchelberger Warte (Heuchelberg Watch), built 1483 by Duke Eberhard I of Württemberg.

In 2011 major renovation work began on Leingarten's city hall which included installing a new facade on the historically important building.