Cass Township may refer to:
Illinois
Cass Township, Fulton County, Illinois
Indiana
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, Pulaski County, Indiana Cass Township, Sullivan County, Indiana Cass Township, White County, Indiana
Iowa
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
Missouri
Cass Township, Douglas County, Missouri, in Douglas County, Missouri Cass Township, Greene County, Missouri Cass Township, Stone County, Missouri, in Stone County, Missouri Cass Township, Texas County, Missouri
Ohio
Cass Township, Hancock County, Ohio Cass Township, Muskingum County, Ohio Cass Township, Richland County, Ohio
Pennsylvania
Cass Township, Huntingdon County, Pennsylvania Cass Township, Schuylkill County, Pennsylvania