This is a list of places in the United States named for Lewis Cass:

Counties

• Cass County, Illinois
• Cass County, Indiana
• Cass County, Iowa
• Cass County, Michigan
• Cass County, Minnesota
• Cass County, Missouri
• Cass County, Nebraska
• Cass County, North Dakota
• Cass County, Texas

In addition, Bartow County, Georgia was formerly Cass County, Georgia, until after the American Civil War.

Cities, towns, or villages

• Cass, West Virginia
• Cass Lake, Minnesota
• Cass City, Michigan
• Cassopolis, Michigan
• Casstown, Ohio
• Cassville, Georgia, formerly the county seat of Bartow County, Georgia
• Cassville, Missouri
• Cassville, Pennsylvania
• Cassville, Wisconsin

Townships

• Cass Township, Illinois , Fulton County, Illinois
• Cass Township, Clay County, Indiana
• Cass Township, Dubois County, Indiana
• Cass Township, Greene County, Indiana
• Cass Township, LaPorte County, Indiana
• Cass Township, Ohio County, Indiana
• Cass Township, Pulaksi County, Indiana
• Cass Township, Sullivan County, Indiana
• Cass Township, White County, Indiana
• Cass Township, Boone County, Iowa
• Cass Township, Cass County, Iowa
• Cass Township, Cedar County, Iowa
• Cass Township, Clayton County, Iowa
• Cass Township, Guthrie County, Iowa
• Cass Township, Hamilton County, Iowa
• Cass Township, Harrison County, Iowa
• Cass Township, Jones County, Iowa
• Cass Township, Shelby County, Iowa
• Cass Township, Wapello County, Iowa
• Cass Township, Douglas County, Missouri
• Cass Township, Greene County, Missouri
• Cass Township, Stone County, Missouri
• Cass Township, Texas County, Missouri
• Cass Township, Hancock County, Ohio
• Cass Township, Muskingum County, Ohio
• Cass Township, Richland County, Ohio
• Cass Township, Oklahoma , Oklahoma County, Oklahoma
• Cass Township, Huntingdon County, Pennsylvania
• Cass Township, Schuylkill County, Pennsylvania
• Cassville (town), Wisconsin

Geographical features

• Cass Lake (Minnesota)
• Cass Lake (Michigan)
• Cass River , Michigan

Other

• Cass Scenic Mountain Railroad , West Virginia
• Cass Park, Detroit, Michigan
• Cass Tech High School (Detroit, Michigan)