Lenzburg (disambiguation)

Lenzburg is a town in Switzerland. The term may also refer to:

;Switzerland
*Lenzburg (district), a district of the Canton of Aargau, of which Lenzburg is the capital
*Schloss Lenzburg, a castle above the town of Lenzburg
*Regionalbus Lenzburg AG, a local bus company

;United States
*Lenzburg, Illinois
*Lenzburg Township, St. Clair County, Illinois