St. Clair Township may refer to:
Places in Canada:
Places in the United States:
- St. Clair Township, St. Clair County, Illinois
- St. Clair Township, Benton County, Iowa
- St. Clair Township, Monona County, Iowa
- St. Clair Township, St. Clair County, Michigan
- St. Clair Township, Butler County, Ohio
- St. Clair Township, Columbiana County, Ohio
- St. Clair Township, Allegheny County, Pennsylvania, a former township
- St. Clair Township, Pennsylvania
- and also:
- East St. Clair Township, Bedford County, Pennsylvania
- Upper St. Clair Township, Pennsylvania
- West St. Clair Township, Pennsylvania
See also